Stay Realm Logo

Discover

Hotels

Settings

Currency
Language
Loading...
9.1 / 10 Guest Rating

Grassy Flats Resort & Beach Club

58182 Overseas Hwy,Marathon FL 3305, Marathon, us

Grassy Flats Resort & Beach Club - main view

About the Property

Luxurious Accommodation with Spectacular Views
Experience a slice of paradise at Grassy Flats Resort & Beach Club in Marathon. Indulge in pool views from every room, relax on the sun terrace, and unwind in the hot tub. Top-Notch Amenities for Ultimate Comfort Enjoy air-conditioned rooms with sea view balconies, flat-screen TVs, and fully equipped kitchens in selected units. The hotel also offers an outdoor pool, free parking, a garden, and a restaurant for your convenience. Unwind and Explore Take advantage of the barbecue facilities, concierge service, and ATM on-site. With easy access to nearby attractions like Florida Keys Aquarium Encounters, your stay at Grassy Flats Resort & Beach Club will be unforgettable. Book now for a dreamy getaway!

Facilities & Amenities

Offsite parking discounted rates available
Parking
Non-smoking rooms
Air conditioning
Swimming pool
Restaurant
Family rooms
Pets allowed
Lift / Elevator
Express check-in/check-out

Important Information

Check-in & Out

Check-in
Check-out11:00 AM

Property Notes

Guests are required to show a photo ID and credit card upon check-in. Please note that all Special Requests are subject to availability and additional charges may apply. Please inform of your expected arrival time in advance. You can use the Special Requests box when booking, or contact the property directly using the contact details in your confirmation. Guests under the age of 18 can only check in with a parent or official guardian. A deposit may be required at the property.

Check Room Availability

1 night ยท 2 adults

No rooms available

We couldn't find any available rooms for these dates and guests. Try adjusting your search criteria.

Guest Reviews

9.1
Exceptional736 verified reviews
AI Summary

Guests highly rate the clean and well-maintained and frequently praise the friendly and helpful staff.

Categories

Cleanliness9.0
Service9.4
Location9.4
Room Quality8.5
Amenities9.3
Value for Money8.7
Food and Beverage9.1
Overall Experience9.3

Select topics to read reviews

P
Pamela
Verified booking
Standard Room
Stayed in Oct 6, 2025

"Exceptional"

10.0

Really nice & clean resort. Amazing views! Great service & enjoyed the kayaking. Weโ€™ll be back again to visit!

Helpful?
R
ronanfrFR
Verified booking
family_with_children
Standard Room
Stayed in Oct 1, 2025

"Very Good"

7.0

Emplacement au milieu des keys, hรดtel bord de mer, personnel sympa. Concert au bar. Parking large

Le bรขtiment des appartements nโ€™apparaรฎt pas sur les photos booking est ne ressemble en rien au bรขtiment des chambres pour adultes. La piscine famille nโ€™a aucun charme contrairement ร  la piscine pour adultes. Le frigo fait un bruit insupportable. Dans le placard dโ€™une des chambre il y a une ventilation pour la climatisation qui se dรฉclenche mรชme la nuit โ€ฆ verre dโ€™accueil sympa mais dommage quโ€™il nโ€™y a rien pour les enfants. Odeur du aux algues dรฉsagrรฉable et plage inutilisable. Le prix devrait รชtre revue pendant la saison des sargasses. Mauvais rapport qualitรฉ/prix

Helpful?
T
Trisha
Verified booking
partner
Standard Room
Stayed in Sep 30, 2025

"Exceptional"

10.0

Staff was extremely helpful and friendly. The resort felt secluded even though it was tucked away in the middle of everything. Our room was clean and there were lots of options for activities!

Helpful?
K
KelliusUS
Verified booking
couple
Standard Room
Stayed in Sep 30, 2025

"Exceptional"

10.0
Helpful?
L
Luciano
Verified booking
family
Standard Room
Stayed in Sep 29, 2025

"Exceptional"

10.0

The stay and the service were excellent. The room was spacious and very comfortable, making the experience truly enjoyable. All the amenities are top-notch and deserve the highest rating. Highly recommended.

Helpful?
B
BermausUS
Verified booking
couple
Standard Room
Stayed in Sep 29, 2025

"Nice relaxing adult only resort"

8.0

The property was nice and close to key west

The beach are had too much sea weed not very pleasant. Also the was an area that the sea weed was accumulating and the smell wasnโ€™t pleasant. Very disappointing was able to into the water.

Helpful?
M
mamasheilansbFLORIDA
Verified booking
Couples
Standard Room
Stayed in Sep 25, 2025

"Second time visit"

10.0

This was our second stay at Grassy Key Resort, and it was every bit as magical as the first! From the moment we arrived, we were greeted with a Prosecco and guava welcome cocktail, the perfect way to start a relaxing escape. The rooms are beautifulโ€”comfortable and full of charm. Our ocean view room offered breathtaking sunrises right from the balcony, and the bathrooms are truly special. The deep clawfoot bathtub feels like a spa retreat all on its own. We spent hours enjoying the water with their Old Town pedal kayaks, such a fun and peaceful way to explore the turquoise waters right from the resortโ€™s shoreline. The deli deserves its own spotlight. Not only do they serve fresh, flavorful bites, but they also go above and beyond with premium steaks and incredible fresh seafood. Mikey, who has spent his life in the meat market trade, is a masterโ€”he can put out a spread that would impress any gourmet. Every meal was a highlight in itself. What really makes Grassy Key Resort shine is the warmth and care of the team, the blend of luxury with laid-back Keys hospitality, and the way every detail feels tailored to guests. For us, Grassy Key isnโ€™t just a resortโ€”itโ€™s a destination weโ€™ll keep coming back to. Five stars simply arenโ€™t enough!

Helpful?
B
BRETT
Verified booking
family
Standard Room
Stayed in Sep 25, 2025

"Excellent"

8.0

The only thing we were disappointed about was the smell from the seaweed which there wasnโ€™t anything they could do about that, but it reeked.

Helpful?
J
jason
Verified booking
partner
Standard Room
Stayed in Sep 25, 2025

"Exceptional"

10.0

This property is beautiful. The staff was so nice. We enjoyed our stay very much!

Helpful?
H
hehflyncookeMIRAMAR, BROWARD COUNTY, FLORIDA
Verified booking
NONE
Standard Room
Stayed in Sep 22, 2025

"Hidden Gem of a Resort in the Keys"

10.0

One of the best boutique resort stays we have been at in our many stays in the Keys. The staff is excellent, the grounds, rooms and pools are great. Highly recommend the property if you are in the Keys. The market on property is amazing; the food and offerings are top notch.

Helpful?