Located in Marathon, Grassy Flats Resort & Beach Club is just steps from Coco Plum Beach and a 2-minute drive from Curry Hammock State Park. .This beach hotel is 10.1 mi (16.3 km) from Sombrero Beach and 1.1 mi (1.8 km) from Keys Cable Park.
What's nearby
Dolphin Research Center - 19 min walk - 1.7 km
Curry Hammock State Park - 2 min drive - 1.4 km
Little Conch Key - 6 min drive - 8.3 km
Coco Plum Beach - 11 min drive - 10.6 km
Sombrero Beach - 19 min drive - 20.1 km
Getting around
Marathon, FL (MTH-Florida Keys Marathon) - 9 min drive
Restaurants
Island Fish Company - 6 min drive
Angler and Ale - 4 min drive
Sparky's Landing Fish and Cocktails - 6 min drive
Driftwood Pizza Pasta - 8 min drive
The Wreck Galley & Grill - 12 min walk
About this property
Grassy Flats Resort & Beach Club
Beachside hotel with 2 outdoor pools
Grassy Flats Resort & Beach Club offers 38 accommodations, which are accessible via exterior corridors and feature hair dryers and irons/ironing boards. Rooms open to furnished balconies or patios. 43-inch flat-screen televisions come with premium cable channels.
Guests can surf the web using the complimentary wireless Internet access. Additionally, rooms include complimentary toiletries and blackout drapes/curtains. Hypo-allergenic bedding, change of towels, and change of bedsheets can be requested. Housekeeping is provided on request.
2 outdoor swimming pools are on site along with a private beach.
The recreational activities listed below are available either on site or nearby; fees may apply.
Stay in one of 38 guestrooms featuring flat-screen televisions. Rooms have private furnished balconies or patios. Complimentary wireless internet access keeps you connected, and cable programming is available for your entertainment. Bathrooms have complimentary toiletries and hair dryers.
Spend the day on the private beach or dip into one of the 2 outdoor swimming pools. Additional amenities at this hotel include complimentary wireless internet access, concierge services, and bike storage.
Satisfy your appetite at The Rhum House, a fine-dining restaurant which features a bar/lounge and an ocean view. Wrap up your day with a drink at the poolside bar. Cooked-to-order breakfasts are available daily from 6:00 AM to 11:00 AM for a fee.
Featured amenities include multilingual staff, ATM/banking services, and a water dispenser. Free self parking is available onsite.
Cooked-to-order breakfasts are available for a surcharge and are served each morning between 6:00 AM and 11:00 AM.
The Rhum House - Overlooking the ocean, this fine-dining restaurant serves dinner only. Guests can enjoy drinks at the bar.
Languages
English, Spanish
Property amenities
Internet
Available in all rooms: Free WiFi
Available in some public areas: Free WiFi
Parking and transport
Electric car charging station on site
Free self parking on site
Food and drink
Daily cooked-to-order breakfast available 6:00 AM to 11:00 AM for a fee: USD 5 to 30 per person
A bar/lounge
A poolside bar
A restaurant
Restaurants on site
The Rhum House
Things to do
2 outdoor pools
Bicycle rentals
Bicycle storage
Ecotours
Fishing
Kayaking
Paddleboard
Personal motorised watercraft
Sailing
Water sports equipment
Windsurfing
Family friendly
2 outdoor pools
Pool gate
Conveniences
ATM
Limited-hour front desk
Water dispenser
Guest services
Change of bedsheets (on request)
Change of towels on request
Concierge services
Housekeeping (on request)
Multilingual staff
Outdoors
Beach loungers
Beach towels
Beach umbrellas
Dock
Firepit
On a private beach
Outdoor furniture
Pool loungers
Pool umbrellas
Accessibility
No lift
More
3 buildings
3 floors
At least 80% lighting from LEDs
At least 80% of food locally-sourced
At least 80% organic food
Biodegradable coffee stirrers available
Biodegradable drinking straws available
Comprehensive food waste policy
Comprehensive recycling policy
Eco-friendly cleaning products used
Local artist showcase
No plastic coffee stirrers
No plastic drinking straws
No plastic soft drink bottles
No plastic water bottles
Renovated entire property - March 2022
Reusable cups
Reusable tableware
Smoke-free property
Vegan dining options
Vegetarian breakfast available
Vegetarian dining options
Water dispenser usage encouraged
Room amenities
Bedroom
Bedsheets provided
Blackout drapes
Hypo-allergenic bedding
Bathroom
Free toiletries
Hair dryer
Shampoo
Soap
Toilet paper
Towels provided
Entertainment
43-inch flat-screen TV with premium cable channels
More
Access via exterior corridors
Air conditioning (climate-controlled)
Bulk dispensers for toiletries
Cleaning products are eco-friendly
Eco-friendly toiletries
Electrical adapters
Energy-saving switches in guestrooms
Iron/ironing board
LED lighting
Recycling
Water-efficient showers
Water-efficient toilets
Policies
Check-in
Check-in start time: 3:00 PM; Check-in end time: 9:00 PM
Late check-in subject to availability
Minimum check-in age: 21
Check-out
Check-out before 11:00 AM
A late check-out fee will be charged
Special check-in instructions
The front desk is open daily from 7:00 AM - 9:00 PM
Front desk staffed during limited hours
If you are planning to arrive after 9:00 PM please contact the property in advance using the information on the booking confirmation
Access methods
Front desk (limited hours)
Pets
Pets allowed for an extra charge of USD 50 per accommodation, per night
Service animals are welcome, and are exempt from fees
Welcoming dogs only
Up to 30 lbs per pet
Pets cannot be left unattended
Children and extra beds
Children are welcome
Rollaway/extra beds are not available
Cribs (infant beds) are not available
Payment types
Important information
Optional extras
Fee for cooked-to-order breakfast: approximately USD 5 to 30 per person
Pet fee: USD 50 per accommodation, per night
Service animals are exempt from fees
A late check-out fee will be charged
The above list may not be comprehensive. Fees and deposits may not include tax and are subject to change.
You need to know
Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
The name on the credit card used at check-in to pay for incidentals must be the primary name on the guestroom reservation
Guests must contact this property in advance to reserve cribs/infant beds
This property accepts credit cards, debit cards, and cash
Cashless transactions are available
This property uses eco-friendly cleaning products
Safety features at this property include a carbon monoxide detector, a fire extinguisher, a smoke detector, and a first aid kit
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room
We should mention
This property does not have elevators
Pool access available from 7:00 AM to 10:00 PM
Only registered guests are allowed in the guestrooms
Some facilities may have restricted access; guests can contact the property for details using the contact information on the booking confirmation
This property welcomes guests of all sexual orientations and gender identities (LGBTQ+ friendly)
Property is also known as
Grassy Flats & Club Marathon
Grassy Flats Resort & Beach Club Marathon
Grassy Flats Resort & Beach Club Hotel Marathon
Grassy Flats Resort & Beach Club Hotel
Grassy Flats & Club Marathon
Grassy Flats Resort & Beach Club Hotel
Grassy Flats Resort & Beach Club Marathon
Grassy Flats Resort & Beach Club Hotel Marathon
Grassy Flats Resort & Beach Club Reviews
Reviews
9.4
Exceptional
All reviews shown are from real guest experiences. Only travellers who have booked a stay with us can submit a review. We verify reviews according to our guidelines and publish all reviews, positive or negative.
Rating 10 - Excellent. 225 out of 284 reviews
10 - Excellent
225
Rating 8 - Good. 33 out of 284 reviews
8 - Good
33
Rating 6 - Okay. 19 out of 284 reviews
6 - Okay
19
Rating 4 - Poor. 3 out of 284 reviews
4 - Poor
3
Rating 2 - Terrible. 4 out of 284 reviews
2 - Terrible
4
9.6/10
Cleanliness
9.6/10
Staff & service
9.0/10
Amenities
9.4/10
Property conditions & facilities
9.4/10
Eco-friendliness
Reviews
10/10 Excellent
Lori
Travelled with family
16 Mar 2025
Liked: Amenities
Beautiful property and the staff was so friendly and helpful!
This hotel is an excellent option for a stay in the Keys. The restaurant might be the best you will find in the Keys, with an outstanding kitchen, great atmosphere and on the water.
The rooms are very comfortable; you will need to ask for service, otherwise they will leave you alone. Great balconies overlooking the water.
The staff were very welcoming and kind. Megan was amazing and very attentive and sweet. Her smile is contagious and you can tell she loves her job!! Love the resort! Would highly recommend!
Grassy Flats resort is a beautiful, private, secluded property. We felt so relaxed here. There is not much of a “beach” area but seeing the high and low tide reveal the “grassy flats” was so cool. There are beach chairs/lounge chairs everywhere (by pools and along ocean front) so you can post up wherever you want. The pool was awesome and shady. The restaurant The Rhum House was gorgeous and the food was excellent. The room was so beautifully decorated, and the balcony was wonderful. I would recommend this to anyone! And I already want to go back.
Beautiful property, view from our room was amazing! Pools and hot tub perfect temperatures, never a problem to find a chair.
Right on the ocean, kayaks and SUP always available. Great rooftop with entertainment. Alyssa made our stay wonderful and helped us with anything we needed:)
Information or the lack thereof regarding breakfast options was confusing. We went off property.
The view from the balcony was spectacular. The shower products were wonderfully scented.
We loved our stay at Grassy Flats. The rooms were clean and had excellent views. The staff was welcoming and we enjoyed the pool, beach and hot tub! Will definitely be back.
We enjoyed our stay except for a few things. Housekeeping only came to door and usually asked if you wanted clean towels. Room was never really cleaned. No coffee pot or microwave in room (personal preference). Out door furniture very old.
This is a top notch resort! Terrific staff, beautiful accommodations, great restaurant and bars, lovely pools (2) and hot tub, so many sport options, and just a very relaxing but fun place to be. Loved our vacation, we stayed a week. And because it’s in the middle of the Keys, we could get around easily and make day trips to Key West and Key Largo. Marathon also offers a lot.