Name: Grassy Flats Resort & Beach Club
Address: 58182 Overseas Hwy, Marathon, 33050, US

8/10

Excellent

02 Aug 2026

Lucas

Wish the AC was better. Amazing staff all around. Comfortable. A true beauty

6/10

Pleasant

02 Aug 2026

Manuel

Booked to escape some of the miami heat wave , a/c was barely cooling the room , room was in rough shape with a really bad paint job, we couldn’t spend even 5min outside in the beach due the tons of seaweed producing horrible odors . Tiki bar was pretty good , . Hotel restaurant is pretty good but not worth the price tag. Market shop coffee was great , but gets crowded fast and long time waiting to get served.

10/10

Exceptional

20 Jul 2026

George

This place is great. Very convenient location in Marathon.
We stayed in the adults only building. The adult pool was great. Beach area was very nice.
Food at the Rhum House was excellent.
Staff was very friendly.
And there is Wilma! She is the resident pet cat mascot. A super friendly, female orange long hair cat.

Partner

2/10

Poor

17 Jul 2026

Claudia

Horrible hotel , la atención de la muchacha de la recepción si muy atenta , el hotel muy viejo , para estos tiempos , y una peste bien grande en el ambiente para un hotel tan caro

Family_with_children

10/10

Exceptional

12 Jul 2026

Destini

.

10/10

Exceptional

12 Jul 2026

Curtis

Super experience all around. Hospitality is top notch and location was perfect. Property is in the beginning of Marathon just past Duck Key (Hawks Cay). Not as far down as I anticipated. We usually stay in Islamorada so not going all the way down near Key West was a great bonus.

Partner

8/10

Excellent

10 Jul 2026

Paula

Excelent! :)

Partner

10/10

Exceptional

07 Jul 2026

Melissa

The staff were nice. The rooms were cleaned daily and

10/10

Exceptional

06 Jul 2026

Bruno

Amazing place

6/10

Pleasant

05 Jul 2026

Jonathan

Stayed at Grassy Flats in the Keys recently and wanted to share an honest review since the online photos make it look nicer than the actual experience.
The bad: the seaweed smell was rough during our stay, really stinky and hard to escape. Rooms were loud and the beds were creaky, so sleep was tough. The tiki bar was also disappointing, open bottles of liquor and simple syrups sitting out with no lids on them, which felt pretty unsanitary.
The good: the staff was great, really friendly and helpful the whole time. The food at the market was genuinely great, organic and fresh. The fresh catch of the day sandwich from the market was honestly one of the best sandwiches I’ve ever had.
Overall I probably wouldn’t go back, mainly because of how loud the rooms were. I’m sure it’s a nicer experience when the seaweed isn’t piled up, but between the noise and the tiki bar situation, it just didn’t match what the website promises.

Friends_and_family Family

6/10

Pleasant

26 Jun 2026

Anastacia

Tv Remote didn’t work. Phone didn’t work. As a solo traveler didnt love that I couldnt reach the front desk. Calling from a cell phone, rang and rang then hung up. Had to go down to the front desk for anything needed. Beach amenities were non-existent. Restaurant completely ignored me when seated alone. 20 min with no one asking if wanted to order. Not a great experience and not worth the price!!!

Self

10/10

Exceptional

17 Jun 2026

Ella

When we arrived we were greeted by Mia. Such a nice young lady and very helpful! We had dinner at The Rhum House and the food and service was fantastic! Our room was very clean and spacious. We were disappointed by the beach but came to find out that is common in the Keys. Also liked how the resort was centrally located.

Partner

10/10

Exceptional

16 Jun 2026

Terri

From the check in to the food, the great conversations with staff they made us feel right at home We will be back
Beautiful property

Partner

10/10

Exceptional

15 Jun 2026

George

I ENJOYED STAYING HERE, BUT WE HAD A BAD EXPERIENCE AT THE RESTAURANT RHUM HOUSE .. I ORDERED A DRINK AND REQUESTED A CERTAIN BOURBON AND THEY GAVE ME THE HOUSE BOURBON INSTEAD I NOTICED WHEN THEY WENT TO CHARGE ME THE MORE EXPENSIVE INSTEAD OF THE HOUSE .. I CONFRONTED THE BARTENDER AND HE WAS VERY POLITE AND APOLOGETIC THAT WAS ONLY THE BEGINNING WE ALSO ORDERED A STEAK TO GO AND THE WAITRESS FORGOT TO PUT IT IN THE ORDER IT WAS A BAD NIGHT FOR THIS WAITRESS AND THEY REALLY DIDN'T DO ANYTHING TO SHOW THEY WERE SORRY. THE PLACE IS NICE AND MY WIFE AND I MAY CONSIDER GOING BACK, BUT I HIGHLY DOUBT WE WILL BE DINING IN THE RUMM HOUSE AGAIN

Pet

4/10

Poor

12 Jun 2026

Brandon

The seaweed was horrible and the stink was really bad that was our only issue if it wasn’t for that would be close to 5 star and I know they can’t control nature

Family

8/10

Excellent

11 Jun 2026

Katherine

Great location, beautiful room with sea view balcony. Would stay again

Family

8/10

Excellent

11 Jun 2026

Linda

It was a great stay. The rooms are spacious. The views are lovely. The first room we had had a roach problem and we needed to move to a new room. The second room was perfect.

Family

10/10

Exceptional

10 Jun 2026

Thomas

Hotel is always excellent from amenities to service to cuisine. The land and sea market is fantastic for a meal and anything you need for your room. From excellent wines to fruit, cheese to their black grouper fish sandwich. everythis is wonderful. Excellent on site restaurant the Rhum House, fishing charters, Hotel is owner managed. bongos up the street for cable water skiing, outdoor music food..it is just a WIN all the way around.

Business

10/10

Exceptional

02 Jun 2026

Lisa

The property is beautiful and tucked away from the main strip. Quiet resort, clean rooms, beautiful sauna and beach area. The seaweed was bad this year and so it smelled terribly, but that's all on mother nature. Rooms were very clean and comfortable, dog friendly, overall a great experience. Plenty of food options on property and happy hour during the day. No bell service which is why I took off a star... the elevator was out when we were leaving so had to haul suitcases down 3 flights of stairs which was not fun.

Pet

10/10

Exceptional

01 Jun 2026

Maria del carmen

I stayed in the adults only area and it was perfectly quiet and has an amazing view.

Partner

10/10

Exceptional

31 May 2026

Kelsey

Clean newly renovated. Staff was so friendly. We had a great time. Highly recommend

Partner

10/10

Exceptional

27 May 2026

Shonlyn

Loved the adult pool area.

Partner

10/10

Exceptional

26 May 2026

Joseph

Very helpful staff and clean room. Perfect weekend get away.

Partner

10/10

Exceptional

24 May 2026

Brandon

The room was clean and spacious. The staff were genuinely friendly they seemed like they enjoyed being there. Breakfast was next door and convenient. The pools were clean and the tiki bar was added to the ambiance.

Partner

10/10

Exceptional

07 May 2026

Gerald

The room was outstanding. The view was absolutely gorgeous. We were on the same floor as the entertainment/bar, but the noise was minimal and stopped at a reasonable hour. Parking was convenient too. The staff on the front desk were always kind. The house cat, Wilma, is awesome. If there was any room for improvement would be to regularly check the espresso machine. Ours had issues. A K-cup type coffee maker would have been preferred and should be easier to maintain. But there is a small store on the property that had good coffee. Overall, I would highly recommend this location. Very convenient to the Keys whether West or East.

10/10

Exceptional

30 Apr 2026

Lance

It was such a lovely place. Great pools, fun tiki bar during the day and great rooftop happy hour in the evening. The restaurant on site is delicious. There’s a market on site that had so many great wines, snacks, deli & breakfast too.

10/10

Exceptional

30 Apr 2026

Kenneth J

Staff is excellent. 3 days the elevator was not working. This was a bit of a problem as my husband has health issues. They clean the beach and the smell is bad. The view is to die for. The rooftop deck is very nice with delicious drinks and appetizers, small plates. Overall it is a lovely destination

Partner

10/10

Exceptional

30 Apr 2026

Sarah C.

Grassy Flats is an amazingly beautiful property. From one end to the other it's like a little slice of paradise for sure. We stayed in the wreckers building. The room was fantastic, clean and very comfortable. The pool was warm and hot tub was delightful. Restraunts were closed when we were there so we ate at the market. Fish tacos were pretty basic. Overall an excellent stay.

Friends

10/10

Exceptional

28 Apr 2026

Susan Marie

We loved our stay at Grassy Flats. From the beautiful room and view to the great food and live music at the bar, what a place! Great staff, great location, great time!

Partner

10/10

Exceptional

21 Apr 2026

Sheila

Great property, my only complaint was we had the same room with a couple we were traveling with and asked to be next to each other, they said they couldn't we had one room in between us even though nobody was in the other rooms. So Boo on you!!

Friends

10/10

Exceptional

20 Apr 2026

Gerald

All amenities were great!

Partner

10/10

Exceptional

19 Apr 2026

Christine

Nice pol and hot tub. The restaurant up front serves breakfast and fresh baked items along with lunch options. Their food and coffee was excellent!

Partner

8/10

Excellent

12 Apr 2026

Carisa

Great rooftop bar with happy hour, live music and excellent food. Enjoyed the small but very pretty property.

Partner

10/10

Exceptional

11 Apr 2026

Daniel

Was a very clean resort. Make sure you make a reservation if you would like to eat at the rhum house. On property market is a gem. Live music on the palm deck was great.

Partner

10/10

Exceptional

10 Apr 2026

Amanda

We had an amazing time, and enjoyed our stay. Place is beautiful, staff is friendly and so accommodating! Didn’t know the Palm Deck and tiki bars and Rhum House had limited hours. They weren’t open at all our first couple days, and didn’t open until after 5 the last day there. If this was advertised I missed it. That’s the only thing I would change, having a bar on the property open more hours. Other than that we definitely enjoyed our stay here!

Partner

6/10

Pleasant

04 Apr 2026

Madeline

Noisey on the lower level, can hear guests stomping around above you. Hard beds and pillows. Good shower and nice balcony though. Pool was nice. Tiki bar is limited during the day.
Didn't love that the rooftop bar and rhum house was closed Tuesday and Wednesday as the other restaurants in the area get very crowded.

Partner

10/10

Exceptional

03 Apr 2026

kevin

Amazing views, hospitality and food!

10/10

Exceptional

31 Mar 2026

Victoria

Beach view was nice Breakfast not available

8/10

Excellent

25 Mar 2026

James

The pool and pool area was nice. We liked how there was a separate adult pool from the kids pool. Also, the room was clean and had clean towels everyday. But, they allow dogs which was not a pleasant experience. Yipey dogs during the day & night was very disturbing and annoying.

Partner

10/10

Exceptional

23 Mar 2026

Carl

Our stay at the Grassy Flats Resort & Beach Club was outstanding. Superb location & grounds, facilities and staff. Two great dining options, the Palm Deck outdoors casual and the Rhum House indoors, upscale and also with a great Ocean view. The Market next door was extremely convenient for breakfast, lunch option. Lastly, the \"house cat\" Wilma roaming the grounds is a real sweety!

Partner

10/10

Exceptional

19 Mar 2026

Jeffrey

Relaxed location on the keys, not too busy and plenty of restaurants nearby and on location to have a different experience each night. Resort had friendly and helpful staff with plenty of activities on site to take advantage of. 2 beautiful pool areas, beach area with various activities available including biking, kayaking, paddle boarding, floating cabana, sauna & tiki bar. Enjoyed our stay very much!

Family

8/10

Excellent

14 Mar 2026

DEBORAH LEE

Yes the view was nice, the hotel staff was nice and the room was clean

10/10

Exceptional

12 Mar 2026

Vanetta

Clean room. Ocean view beautiful. Pool wonderful

10/10

Exceptional

12 Mar 2026

KAREN

Every single part of our stay at Grassy Flats was 5/5! Staff, room, ocean view, pool, dining, market, beach, etc. highly recommend!

Partner

10/10

Exceptional

11 Mar 2026

Steven

Beautiful ocean view from our lovely room. Wonderful balcony and facilities.

Partner

10/10

Exceptional

09 Mar 2026

SUSAN

Beautiful property

8/10

Excellent

09 Mar 2026

Amie

A quiet luxury stay, with beautiful pools and ocean view. Restaurants on site open on the weekends with a great little market and restaurant next door. Live music on weekend nights is fun.

Some of the rooms are dated and could use a little more upkeep. The road is loud if you're staying in a room facing that direction. The beach is typical of the keys (don't expect to be lounging on the beach or wading into the water). Fishing n/a - if you're looking for a spot to fish off the dock try Islamorada proper or Duck Key

Partner

10/10

Exceptional

07 Mar 2026

Thomas

Yes

Partner

10/10

Exceptional

04 Mar 2026

Kristine

Friendly staff, great view from room, pool fine, many areas to lounge, “ store” nice and handy and fair priced.

Partner

10/10

Exceptional

01 Mar 2026

Ronald

Room was super clean and the staff was very accommodating….can’t wait to go back!!

Friends_and_family Family

8/10

Excellent

26 Feb 2026

Scott

Comfortable room, clean

Partner

10/10

Exceptional

25 Feb 2026

Serge

Very clean and spacious room with great ocean view. Also, very courteous staff

Partner

10/10

Exceptional

23 Feb 2026

Kevin

When we checked in we were upgraded to a fantastic room. The views at this resort are incredible. The staff was so friendly and welcoming and the onsite restaurant was the best.

Partner

10/10

Exceptional

23 Feb 2026

Jeff

Great pool area, clean, fantastic views

Partner

8/10

Excellent

23 Feb 2026

Brad

Beautiful location, food at Rhum house was excellent, nice pools and hot tub, lots of good area for sunning too. Beds are super comfortable. Land and Sea Market is a nice option.
No beach per se, ocean is quite shallow next to resort and muddy with low tide. No ice machines, inconvenient to ask for ice. Had to ask each day to have room cleaned. Shower had hot water issues. Also, we had a few check out issues, miscommunications about late checkout.
Overall, a solid 4-4.5 stars.

Partner

8/10

Excellent

20 Feb 2026

Julia

Nice location & beach. The only market/deli/restaurant are owned by the hotel & nothing else within walking distance. The toilet was lose with a loud annoying clank each time it was used. No working ice machine, but we could walk to the bar or convenience store for ice. No heat in our room, which would have been nice one the evening got chilly.

Partner

10/10

Exceptional

19 Feb 2026

Michelle

Really liked this hotel and won't hesitate to return! Spacious room with a beautiful view. Comfortable bed and bedding. The on-site restaurants were convenient and had great food and drinks. Gorgeous location and landscaped grounds with lots of private seating areas on and around the beach. So many amenities. Loved it!

8/10

Excellent

18 Feb 2026

James

Staff was great. The room was clean but there were sugar ants in our room by the refrigerator. The CASE to Plate was excellent. We may return next year. The coffee machine in the room was to complicated to operate. A Keurig would be easier to operate for old people.

Partner

10/10

Exceptional

17 Feb 2026

David

tiki bartender, front desk and palm room waitresses were very friendly. entire club was laid back for relaxing. The facility was well located and off the beaten path. eco friendly a plus. Pool, hot tub and pool area were extremely clean. Palm deck was cool. Apps and drinks were great. Although the room cleaning did kinda fall off towards the end of the stay.

Partner

10/10

Exceptional

17 Feb 2026

Donald James Williamson

Our room was absolutely spotless and was cleaned and remade each day were guests at Grassy Flats. The peacefulness of the property was what sold me to book our stay - we could not have been happier with this aspect! Every single member of the staff we encountered seemed concerned with us like we were the only guests on the property and our comfort and satisfaction were the most important things. After our stay, my wife and I have decided this will be an annual vacation for us!

Partner

6/10

Pleasant

14 Feb 2026

STEVE

For the duration of our stay the staff was friendly, the on site food was good and the beachfront was scenic and well maintained. However, the accomodations and the service fell short. The rooms had blank walls which drove my wife crazy (she likes to decorate). We did not like the following: rooms do not have a microwave; coffee makers do not work (replaced twice); only ice machine not working; thin walls (heard our neighbors); and ocean view obstructed by trees. The management might want to consider offering free breakfast or meal certificate to offset these shortcomings. Probably won't stay here again unless they up their game.

Partner

10/10

Exceptional

13 Feb 2026

Heidi

The view was spectacular from our room. The staff were so friendly (especially Wilma)! Great food, great vibe!

Partner

6/10

Pleasant

12 Feb 2026

Milissa

Room was not ready until after check-in time. A/C was not working correctly in our room. It would quit running and then flash an \"error\" sign that required a reset. We were up and down most of the night continuously reseting it. Upon checkout, no one was at the front desk for 20 min so we just left our room keys.

Leisure Partner

10/10

Exceptional

09 Feb 2026

Howard

We loved this resort. It is a great location as you can go anywhere to do things in the Keys in an hour or so. Our room was great, and the view from the patio looking through the palm trees was fantastic. The staff was friendly and helpful. The weather turned cold and we were not able to take advantage of the ocean, but the pool was heated nicely and we enjoyed it.

Leisure Partner

10/10

Exceptional

07 Feb 2026

Lisa J.

From the moment we arrived at Grassy Flats Resort, it felt like stepping into a postcard. Nestled on a gently curving stretch of white‑sand in the Keys, the property blends low‑key luxury with a breezy, coastal vibe that makes you want to linger forever. We will definitely be back and are currently looking into booking another vacation at the resort.
A shout out to every member of the Grassy Flats team as everyone seemed genuinely invested in making our stay unforgettable. Wish we could’ve stayed forever!

Leisure Partner

10/10

Exceptional

06 Feb 2026

Lance

Staff was very friendly and helpful. Nice room at a beautiful location. Really enjoyed the beach and pools.

Partner

8/10

Excellent

06 Feb 2026

Kevin

Rooms were clean but the staff were nice and helpful. Both their restaurants were closed the whole time.

Leisure Partner

8/10

Excellent

05 Feb 2026

Stuart

Fabulous location with amazing views. Shout out to Mia in reception, very helpful and friendly.

Partner

10/10

Exceptional

31 Jan 2026

Carlos

Exceptional services.

Leisure Partner

10/10

Exceptional

27 Jan 2026

Joseph

Clean, beautiful room with great view. Several good food and drink options. Great location on the water.

Leisure Partner

10/10

Exceptional

26 Jan 2026

Jeffery Scott

Great place!

8/10

Excellent

25 Jan 2026

Jeanne

The resort is beautiful. Restaurant and bar onsite. Only 4 out of 5 stars because housekeeping was a bit lacking. Had to request tge bed be made up one day. Not all towels were changed & glasses not changed daily. Sort of disappointing for the price point.

Partner

10/10

Exceptional

25 Jan 2026

Melanie

This hotel was really lovely. The adults only pool and proximity to the water is amazing- the staff were friendly. I also like that the coffee opens at 6am.

Leisure Friends

10/10

Exceptional

22 Jan 2026

Leann

The room was great and very clean with a spectacular view. The staff was extremely friendly and helpful. Housekeeping was great as well. We loved the pool area and beautiful views. We will definitely be back!

Leisure Partner

8/10

Excellent

20 Jan 2026

Debbie

Staff was very kind. Room was clean beautiful views

Leisure Family

10/10

Exceptional

18 Jan 2026

John

We did not have breakfast there.

Partner

10/10

Exceptional

17 Jan 2026

Mindy

The property and room were spotless. Very pretty, kind staff, and amenities excellent! We stayed in The Conch House and had everything we needed. We felt very welcome. We had an excellent meal at the Rhum House and found what we needed at the market. We very much enjoyed a relaxing and beautiful vacation at Grassy Flats!

Leisure Family

10/10

Exceptional

16 Jan 2026

Lisa

This was out first stay at Grassy Flats Resort and Beach Club and wow!!! First, I would like to comment on how the staff goes out of their way to make sure you are well cared for. Everyone is so kind. And I have to say the bed (in room 208) had without a doubt, the most comfortable mattress we've ever slept on. It felt like we were sleeping on a cloud. Just incredible!!! The property is very clean and they keep the grounds nicely manicured. And last but mot least, Wilma, the resort princess...what a pretty kitty. Thank you Grassy Flats. We hope to return sooner than later.

10/10

Exceptional

10 Jan 2026

Michael

Beautiful room and grounds. Everything was clean and well cared for. Staff was friendly and attentive. The views were glorious!

Leisure Partner

10/10

Exceptional

09 Jan 2026

Andrea

Breakfast was great

Partner

10/10

Exceptional

08 Jan 2026

Glenn

Clean, quiet and serene resort. If you're looking to relax and chill out completely then this is the place. The staff were all super nice and helpful. Absolutely gorgeous sunrise view. The property all around is beautiful. Our room was perfect and the views from the balcony were stunning! The food and drinks were excellent and the pool and hot tub were clean and relaxing. The store on the property was very well stocked and could cook up whatever you bought from them. Would highly recommend Grassy Flats resort.

Leisure Partner

10/10

Exceptional

07 Jan 2026

Janelle

Room was beautiful and property was stunning!

Friends_and_family Friends

10/10

Exceptional

05 Jan 2026

Yelena

Beautiful resort, felt like a deserted island. Perfect to set! Staff was very friendly and helpful. Really enjoyed our quick getaway!!

10/10

Exceptional

03 Jan 2026

daniele

fantastic place with great restaurant and all the staff super!
will be back next year Daniele

Leisure Family

10/10

Exceptional

31 Dec 2025

Ashley

Need more options for dining

Leisure Partner

10/10

Exceptional

30 Dec 2025

Kathleen

The staff was amazing!

Leisure Partner

10/10

Exceptional

29 Dec 2025

Anupam

The staff was exceptionally helpful and polite. We enjoyed the bar, grassy flat market and various watersports

Leisure Family

10/10

Exceptional

25 Dec 2025

Susan

What a great place can’t wait to go back. Love this place. ❤️❤️

Leisure Partner

10/10

Exceptional

21 Dec 2025

Philip M

We would 100% stay here again. We loved every minute of it. The staff, service, and property were top notch. The staff payed attention to little details and confirmed all information before we got there. They even had a 10 year anniversary card waiting for us. Very attentive and really appreciate the little things. Cannot wait to come back.

Leisure Partner

10/10

Exceptional

17 Dec 2025

Steven

Beautiful grounds, clean rooms.and nice staff. Great location.

Leisure Self

10/10

Exceptional

15 Dec 2025

Elizabeth

Enjoyed sunrise every day

8/10

Excellent

15 Dec 2025

Roy

Clean room, super hot jacuzzi, great margaritas, and amazing experience at the market. Due to beach clean-up, there was a bit of a foul odor, so didn't sit on balcony much, but great views when we did.

Leisure Partner

8/10

Excellent

11 Dec 2025

rosemary

room clean staff friendly restaurant not opened 2 of 3 day stay and not informed at time of booking.

10/10

Exceptional

07 Dec 2025

Holly

Great place

10/10

Exceptional

04 Dec 2025

Kevin

Beautiful resort. Great location about midway in the keys. Staff couldn’t be more helpful.

10/10

Exceptional

04 Dec 2025

Alesia

Clean room. Friendly staff. Good location.

Leisure Family

10/10

Exceptional

03 Dec 2025

Asta

Hidden gem. The only regret is that I only had 2 nights here. Definitely coming back.

10/10

Exceptional

03 Dec 2025

Monica

Great view and wonderful friendly staff!

Partner

10/10

Exceptional

03 Dec 2025

Dorothy

Amazing stay, perfect small hotel with lot of activities

8/10

Excellent

29 Nov 2025

William

Everyone was super friendly and helpful. We asked where we could access a microwave and they brought one to the room! Also came super fast to assist with coffee brewer. Only downside was the mattress was way too soft.

Leisure