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Grassy Flats Resort & Beach Club

2.5 star property

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Photo gallery for Grassy Flats Resort & Beach Club

Exterior
Beach bar
Bar (on property)
Deluxe Room, 1 King Bed, Oceanfront - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board
2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Bar
  • Pet friendly

Explore the area

Map
58182 Overseas Hwy, Marathon, FL, 33050
  • Dolphin Research Center
    ‪19 min walk‬
  • Curry Hammock State Park
    ‪2 min drive‬
  • Coco Plum Beach
    ‪11 min drive‬
  • Marathon, FL (MTH-Florida Keys Marathon)
    ‪11 min drive‬

Room options

View all photos for Family Suite, 2 Bedrooms

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 2 Bedrooms

8.0 out of 10
Very good
(6 reviews)
  • Ocean view
  • Sleeps 4
  • 2 Queen Beds

View all photos for Standard Room, Ocean View - Adults Only

Standard Room, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Standard Room, Ocean View - Adults Only

9.8 out of 10
Exceptional
(22 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Deluxe Room, 1 King Bed, Oceanfront - Adults Only

Deluxe Room, 1 King Bed, Oceanfront - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Deluxe Room, 1 King Bed, Oceanfront - Adults Only

9.6 out of 10
Exceptional
(4 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Standard Double Room, Ocean View - Adults Only

Standard Double Room, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Standard Double Room, Ocean View - Adults Only

9.6 out of 10
Exceptional
(15 reviews)
  • Ocean view
  • Sleeps 2
  • 2 Queen Beds

View all photos for Family Suite, 2 Bedrooms, Accessible

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 2 Bedrooms, Accessible

10.0 out of 10
Exceptional
(2 reviews)
  • Sleeps 4
  • 2 King Beds

View all photos for Luxury Room, 1 King Bed, Ocean View - Adults Only

Luxury Room, 1 King Bed, Ocean View - Adults Only | 2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Luxury Room, 1 King Bed, Ocean View - Adults Only

10.0 out of 10
Exceptional
(2 reviews)
  • Ocean view
  • Sleeps 2
  • 1 King Bed

View all photos for Family Suite, 3 Bedrooms

2 bedrooms, hypo-allergenic bedding, blackout drapes, iron/ironing board

Family Suite, 3 Bedrooms

  • Ocean view
  • Sleeps 6
  • 1 King Bed and 2 Queen Beds

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4.5 out of 5, Wonderful, (1009)
$560 nightly
The price is $560 total
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About this property

Grassy Flats Resort & Beach Club

Marathon hotel steps from Coco Plum Beach
At Grassy Flats Resort & Beach Club, relax by one of the 2 outdoor swimming pools or spend the day at the private sand beach where you can enjoy sailing. Housekeeping is available on request.
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.

Step outside to unwind on the sand beach. Enjoy the umbrellas and sun loungers for a relaxing day at the beach. Cool off in one of the 2 outdoor swimming pools at Grassy Flats Resort & Beach Club, and enjoy summer activities like windsurfing and sailing.

The hotel offers a restaurant. Guests can unwind with a drink at one of the hotel's bars, which include a poolside bar and a bar/lounge. Public areas are equipped with complimentary wireless Internet access. Complimentary self parking is available on site, along with a car charging station. A total renovation of this property was completed in March 2022.

Grassy Flats Resort & Beach Club is a smoke-free property.

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 transportation

  • 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 motorized 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 elevator

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
  • Smoking not allowed
  • 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

Property 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

Rating 10 - Excellent. 229 out of 288 reviews
Rating 8 - Good. 33 out of 288 reviews
Rating 6 - Okay. 19 out of 288 reviews
Rating 4 - Poor. 3 out of 288 reviews
Rating 2 - Terrible. 4 out of 288 reviews

9.6/10

Cleanliness

9.6/10

Staff & service

9.0/10

Amenities

9.4/10

Property conditions & facilities

9.6/10

Eco-friendliness

Reviews

10/10 Excellent

Brian

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 2 nights in Mar 2025

10/10 Excellent

Mackenzie

Traveled with partner
Liked: Cleanliness
Good
Stayed 1 night in Mar 2025

10/10 Excellent

Anthony

If you’re looking for a stress-free zone, this is it! Also, plenty of nearby services, restaurants, etc.
Stayed 4 nights in Mar 2025

10/10 Excellent

Zachary

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We LOVE Grassy Flats! This is our second time staying here and we will be back again!! Grassy flats has everything you want from a large resort such as dining options, water sports, multiple pools, a convenience market but with the laid back, quiet and quaint small beach resort vibes.
Stayed 4 nights in Mar 2025

8/10 Good

Nadja, Georgetown

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The resort was beautiful. We added the Romance Package and it was absolutely perfect. The room was spacious and clean and the ocean view was wonderful. The adults-only pool made our trip even more enjoyable.
Stayed 2 nights in Mar 2025

6/10 Okay

Karen

Traveled with family
Liked: Cleanliness, staff & service
Disliked: Amenities
Marketed as a resort but it was disappointing compared to pictures. Entrance difficult to spot. Room was very nice except it was an accessible room so bathroom floor always soaked after showers. Staff all lovely, Wilma the cat visited our room . Pool is tiny and so much foliage. No real beach area available to sit on and do much debris on the beach that it was really very unappealing to try and swim or use kayak. Rhum House restaurant was excellent. The Grassy Flats convenience store for breakfast or lunch was great too. Didn’t rate the beach bar zero atmosphere snd mess that helpful lady working the bar.
Stayed 2 nights in Mar 2025

8/10 Good

Paris

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
It was a nice place, clean. We had a late check in (after 7pm). Instructions to get our keys were great, the instructions to get to our room were kind of difficult. The numbers on the building to get to our rooms did not match our instructions. The elevator stopped working, at breakfast they ran out of plates and utensils about half way through breakfast and were not able to find them.
Stayed 1 night in Mar 2025

10/10 Excellent

Susan

Liked: Cleanliness, staff & service, property conditions & facilities
We loved Grassy Flats! Our room overlooked the pool and ocean - our view was breathtaking! The entire property was lush and felt like a resort. We popped over to the market both mornings for breakfast - delicious! Our servers were very friendly, making our experience very pleasant. The rooftop bar patio was a nice place to land at night. Our 2-day stay was very relaxing and peaceful. And, the adult pool area was a great bonus. We would definitely stay there again!!!
Stayed 2 nights in Mar 2025

10/10 Excellent

Lori

Traveled with family
Liked: Amenities
Beautiful property and the staff was so friendly and helpful!
Stayed 3 nights in Mar 2025

10/10 Excellent

Maria

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Quiet and relaxing with an amazing sunrise each morning. Conveniently located in the middle of the Keys. Staff was very accommodating.
Stayed 7 nights in Mar 2025

10/10 Excellent

Johann

Stayed 1 night in Mar 2025

6/10 Okay

Verified traveler

Traveled with group
Liked: Staff & service

Great service, old resort

Stayed 2 nights in Feb 2025

8/10 Good

Karen

Stayed 4 nights in Feb 2025

10/10 Excellent

Kelly

Liked: Cleanliness, staff & service, property conditions & facilities
Very peaceful and the views were incredible.
Stayed 4 nights in Feb 2025

10/10 Excellent

Marc

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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.
Stayed 4 nights in Feb 2025

10/10 Excellent

Jodi

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 7 nights in Feb 2025

10/10 Excellent

Matt

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
very nice resort with good food, drinks and surroundings
Stayed 2 nights in Feb 2025

10/10 Excellent

Audrey

Traveled with family
Liked: Cleanliness, staff & service, property conditions & facilities
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!
Stayed 5 nights in Feb 2025

10/10 Excellent

Julie

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We would highly recommend staying at Grassy Flats. Our room was very clean, beautiful views. Tiki bar service was fast and friendly!
Stayed 2 nights in Feb 2025

10/10 Excellent

Rodger, holland

Stayed 1 night in Feb 2025

10/10 Excellent

Emily

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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.
Stayed 1 night in Feb 2025

10/10 Excellent

Lisa

Traveled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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:)
Stayed 7 nights in Feb 2025

8/10 Good

Bonnie

Traveled with partner
Liked: Cleanliness, staff & service, property conditions & facilities
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.
Stayed 2 nights in Feb 2025

10/10 Excellent

Sean

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 2 nights in Feb 2025

8/10 Good

Abby

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 4 nights in Feb 2025