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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 · 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

L
LeonienlNL
Verified booking
extended_group
Standard Room
Stayed in Feb 9, 2026

"Excellent"

8.0
Helpful?
L
LaurausUS
Verified booking
family_with_children
Standard Room
Stayed in Feb 8, 2026

"Exceptional"

10.0
Helpful?
M
MichaelusUS
Verified booking
extended_group
Standard Room
Stayed in Feb 8, 2026

"Great private location scenic views overall I would go back again but probably stay in the newer section"

8.0

The property grounds were real nice good beach location very private two swimming pools a great tiki bar by one of them nice hot tub great views also a nice rooftop bar and restaurant

We stayed in the older part of the resort which was a little dated but it was fine could use a little maintenance stupid things like paint and lightbulbs but overall it was fine if all you were looking for was a place to sleep but again that was the old section I think the newer section and the rooms that were right on the ocean looked a lot nicer

Helpful?
F
frankusUS
Verified booking
couple
Standard Room
Stayed in Jan 19, 2026

"Exceptional"

9.0
Helpful?
R
ReneusUS
Verified booking
couple
Standard Room
Stayed in Jan 18, 2026

"What a beautiful resort. The view from our balcony was amazing. Beach area and pool were beautiful. We willl definitely"

9.0

Beautiful property. Great location. Great amenities

No microwave in room

Helpful?
M
MargaretusUS
Verified booking
solo_traveller
Standard Room
Stayed in Jan 13, 2026

"Exceptional"

9.0
Helpful?
C
CherylusUS
Verified booking
couple
Standard Room
Stayed in Jan 12, 2026

"Fabulous"

10.0

Everything

Nothing

Helpful?
A
AmyusUS
Verified booking
couple
Standard Room
Stayed in Jan 9, 2026

"Exceptional"

10.0
Helpful?
J
JADINL3INDIANAPOLIS, INDIANA
Verified booking
Family
Standard Room
Stayed in Jan 1, 2026

"Beach restoration ruined the experience"

6.0

We were so excited about staying at this property based on the outstanding reviews. The experience was ruined by the beach restoration. The smell and noise made it impossible to enjoy our balcony, beach or pool area during our entire stay. I understand that improvements need to be made, but am disappointed that I wasn’t notified this would be going on during our stay. (I made the reservation over the phone) If we would have been informed, we might have made a different lodging decision.

Helpful?
B
BryanusUS
Verified booking
couple
Standard Room
Stayed in Jan 1, 2026

"Exceptional"

10.0

Beautiful resort and campus. Friendly service. Room was everything we needed.

The only constructive criticism I would offer is that the restaurants onsite were not open when we were told they would be. But I do understand this was an "off week" for much of the keys and a time when many places have abbreviated hours. This should have been communicated better. Still loved our stay and would stay again. We've already recommended the resort to others.

Helpful?
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