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Grassy Flats Resort & Beach Club

2.5 star property
VIP Access

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Photo gallery for Grassy Flats Resort & Beach Club

Balcony view
Property video
Balcony view
Rooftop bar, ocean views, open selected days
Beach bar

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Pet-friendly
  • Parking included
  • Free Wi-Fi

Explore the area

View in a map
58182 Overseas Hwy, Marathon, FL, 33050
  • Place, Dolphin Research Center
    ‪17 min walk‬
  • Place, Crawl Key
    ‪2 min drive‬
  • Place, Curry Hammock State Park
    ‪2 min drive‬
  • Airport, Marathon, FL (MTH-Florida Keys Marathon)
    ‪16 min drive‬
VIP Access
Curated for quality and service, VIP Access stays consistently receive our highest guest ratings.
  • Expect exceptional service
  • Extra savings and perks for BONUS+ members
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Room options

View all photos for Family Suite, 2 Bedrooms

Hypo-allergenic bedding, blackout curtains, iron/ironing board

Family Suite, 2 Bedrooms

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

View all photos for Family Suite, 2 Bedrooms, Accessible

Hypo-allergenic bedding, blackout curtains, iron/ironing board

Family Suite, 2 Bedrooms, Accessible

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

View all photos for Family Suite, 3 Bedrooms

Hypo-allergenic bedding, blackout curtains, iron/ironing board

Family Suite, 3 Bedrooms

10.0 out of 10
Exceptional
(1 review)
  • Ocean view
  • 3 bedrooms
  • Sleeps 6
  • 1 King Bed and 2 Queen Beds

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

Standard Double Room, Ocean View - Adults Only

Standard Double Room, Ocean View - Adults Only

9.6 out of 10
Exceptional
(16 reviews)
  • Ocean view
  • 1 bedroom
  • Sleeps 2
  • 2 Queen Beds

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

Standard Room, Ocean View - Adults Only

Standard Room, Ocean View - Adults Only

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

View all photos for Luxury Room, 1 King Bed, Ocean View

Luxury Room, 1 King Bed, Ocean View

Luxury Room, 1 King Bed, Ocean View

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

View all photos for Deluxe Room, 1 King Bed, Oceanfront

Deluxe Room, 1 King Bed, Oceanfront

Deluxe Room, 1 King Bed, Oceanfront

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

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About this property

Grassy Flats Resort & Beach Club

Hotel with 2 outdoor pools, steps from Coco Plum Beach
Along with 2 outdoor pools, this smoke-free hotel has a restaurant and a bar/lounge. Free WiFi in public areas and free self parking are also provided. Additionally, a poolside bar, a sauna, and a hot tub are onsite. Change of towels 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 daily.

2 outdoor swimming pools are on site along with a hot tub. Other recreational amenities include a sauna.

The recreational activities listed below are available either on site or nearby; fees may apply.

Our customers tell us they can't get enough of the helpful staff at Grassy Flats Resort & Beach Club. During your stay, you're just a quick walk from Coco Plum Beach. Free WiFi in public areas, free self parking, and 2 outdoor pools are available.
  • Free WiFi
  • Free self parking
  • Enjoy local and international cuisine at The Rhum House, a steakhouse with ocean views
  • Cooked-to-order breakfast served daily for a fee
  • Take a swim in the 2 outdoor pools or soak in the hot tub
  • Amenities include a car charging station, a multilingual staff, and an elevator
  • Onsite recreation includes a sauna, kayaking, and sailing
  • Guests have great things to say about the helpful staff and the overall condition of the property
  • Steps from Coco Plum Beach and a 2-minute drive from Curry Hammock State Park
  • Dogs welcome for a fee (restrictions apply)
As a guest of Grassy Flats Resort & Beach Club, you'll find 2 outdoor swimming pools, a hot tub, and a sauna. There's a restaurant on site. You can enjoy a drink at one of the bars, which include a poolside bar and a bar/lounge. WiFi is free in public spaces.

Barbecue grills, multilingual staff, and concierge services are also featured at Grassy Flats Resort & Beach Club. Free self parking is available. A complete renovation of Grassy Flats Resort & Beach Club was completed in March 2022.

This Marathon hotel is smoke free.

For a fee, guests can enjoy cooked-to-order breakfast daily from 6:00 AM to 11:00 AM.
The Rhum House - Overlooking the ocean, this steakhouse specializes in local and international cuisine and serves dinner only. Guests can enjoy drinks at the bar. A children's menu is available. Reservations are required.
The Palm Deck - Overlooking the ocean, this rooftop bar specializes in local cuisine and serves dinner and light fare. Happy hour is offered. Open select days.
Grassy Key Market - This coffee shop specializes in American cuisine and serves breakfast, lunch, dinner, and light fare. Guests can enjoy drinks at the bar. A children's menu is available. Open daily.

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
  • Limited on-site self parking
  • Wheelchair-accessible parking and van parking available

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

  • Grassy Key Market
  • The Palm Deck
  • The Rhum House

Things to do

  • 2 outdoor pools
  • Bicycle rentals
  • Bicycle storage
  • Books
  • Canoeing
  • Fishing
  • Hot tub
  • Kayaking
  • Paddleboard
  • Sailing
  • Sauna
  • Water sports equipment
  • Windsurfing

Family friendly

  • 2 outdoor pools
  • Children's games
  • 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 (daily)
  • Multilingual staff
  • Proposal/romance packages

Outdoors

  • Barbecue grill
  • Beach loungers
  • Beach towels
  • Beach umbrellas
  • Dock
  • Firepit
  • Outdoor furniture
  • Pool loungers
  • Pool umbrellas

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • 2 accessible parking spaces
  • Lift (91 centimetre wide door)
  • Pool hoist on site
  • Stair-free path to entrance
  • Visual alarms in hallways
  • Well-lit path to entrance
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible parking
  • Wheelchair-accessible path of travel
  • Wheelchair-accessible path to lift
  • Wheelchair-accessible pool
  • Wheelchair-accessible public bathroom
  • Wheelchair-accessible restaurant
  • Wheelchair-accessible van parking

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: 4:00 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
Late check-out subject to availability
A late check-out fee will be charged

Special check-in instructions

The front desk is open daily from 8:00 AM - 8:00 PM
Guests will receive an email within 24 hours before arrival with check-in instructions; 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
Information provided by the property may be translated using automated translation tools

Renovations and closures

The following facilities will be closed during the summer:
  • Bar/Lounge

Access methods

Front desk (limited hours)

Pets

  • Pets: USD 50 per accommodation, per night
  • Only dogs are allowed
  • Weight limit: 30 lbs per pet
  • Pets cannot be left unattended
  • Certain rooms only
  • You can request a pet-friendly room by reaching out to the property at the number on the booking confirmation
  • Service animals are exempt from fees

Children and extra beds

  • Children are welcome.
  • Rollaway/extra beds are not available.
  • Cribs (infant beds) are not available.

Payment types at the property

Important information

Fees

Guests will be asked to pay the following charges at the property:

  • Resort fee: USD 48 per accommodation, per night
The resort fee includes:
  • Additional inclusions
  • Beach access
  • Beach loungers
  • Beach towels
  • Bicycle storage
  • Housekeeping
  • In-room bottled water
  • In-room coffee
  • Lending library access
  • Pool access
  • Spa access
  • Hot tub access

We've listed all charges provided to us by the property.

Optional extras

The fees and deposits listed below will be charged at the time of service, check-in, or check-out.

  • 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
  • Late check-out is available for a fee (subject to availability)

This may not be a comprehensive list. Fees and deposits are subject to change and might not include tax.

You need to know

This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession.
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
The front desk at this property is open daily from 8:00 AM - 8:00 PM.
Guests arriving after 9:00 PM must make advance arrangements by contacting the property using the information on the booking confirmation. Guests will receive an email 24 hours before arrival with check-in information. Front desk staff will greet guests on arrival at the property.
If you cancel your booking, you'll be subject to the host's cancellation policy. In accordance with EU regulations about consumer rights, property booking services are not subject to the right of withdrawal.

We should mention

  • Pool access available from 7:00 AM to 10:00 PM.
  • Registered guests are the only ones allowed to be in guestrooms.
  • Certain facilities might have restricted access. For details, you can contact the property at the number on the booking confirmation.
  • Pets are welcome in specific rooms only, which can be requested by contacting the property directly at the number on your booking confirmation (please see the Fees section for related charges).
  • 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. 311 out of 391 reviews
Rating 8 - Good. 49 out of 391 reviews
Rating 6 - Okay. 22 out of 391 reviews
Rating 4 - Poor. 5 out of 391 reviews
Rating 2 - Terrible. 4 out of 391 reviews

9.8/10

Cleanliness

9.6/10

Staff & service

9.0/10

Amenities

9.4/10

Property conditions & facilities

Reviews

10/10 Excellent

Paul

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Beautiful location, very nice room, amenities galore, extremely accommodating staff.
Stayed 1 night in Nov 2025

10/10 Excellent

Thomas

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 1 night in Nov 2025

10/10 Excellent

Susan

Travelled with family
Liked: Cleanliness, staff & service, amenities
Beautiful resort with wonderful, friendly, accommodating staff. Food was outstanding with strong focus on fresh, local and organic choices. Definitely a great find!
Sunrise at the beach
From our balcony
Stayed 3 nights in Nov 2025

10/10 Excellent

carolyn

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful!! Gorgeous at night!
Stayed 1 night in Oct 2025

8/10 Good

Carmen

Liked: Cleanliness, property conditions & facilities
Room was clean with a great view. However wish there were more towels available for pool and tub. Only one towel was in room but could not get another when they were wet. Also for the price no complimentary breakfast was surprising. Outdoor bar was nice and good service and food.
Stayed 1 night in Nov 2025

10/10 Excellent

Katie

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This charming little place is absolutely amazing! Room was unique, very spacious and comfortable. Our flight got in late, and the office was closing, so they came up with a great easy way to check in and rest before they opened again. On that note, the staff is extremely nice, very helpful and friendly from check in to check out. The grounds are gorgeous, they even have a little restaurant/bar with a great view, unfortunately it was closed for updates during our 3 day stay. The pool/hot tub was very clean and enjoyable, right there by the water which was so peaceful to us. There are some great activities, like kiteboarding, kayaks, etc- but I will warn y'all they do cost $$, but they seem worth it. Our only gripe was a slow elevator, but the stairs are not that bad. We will absolutely return when we are in Marathon for a family trip.
Stayed 3 nights in Oct 2025

10/10 Excellent

Donald

Travelled with pets, Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Excellent pet friendly property on the water! The staff were more than excellent! We thoroughly enjoyed our quick getaway and will definitely come back to this beautiful resort!
Stayed 1 night in Oct 2025

10/10 Excellent

Chas

Stayed 2 nights in Oct 2025

10/10 Excellent

Kenneth

Stayed 1 night in Oct 2025

8/10 Good

Brian

Stayed 1 night in Oct 2025

10/10 Excellent

Angel

Stayed 2 nights in Oct 2025

10/10 Excellent

Mark

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff was WONDERFUL! Receptive, responsive and so happy! They make your stay so special, everyone makes you feel like you are the only guest there! The bartender Jeff makes the BEST drinks, Lizzy and the office staff are all excellent. They know everything in the area that’s fun to do and the restaurants that serve the very best food. Audrey, Jasmine and the rest of the staff in the “Land & Sea Market” on the property was off the charts, 10/10 for awesome service and friendliness, and the food was consistently delicious and plentiful! The chefs were top notch. They make whatever you like and amend the dish as necessary. We wanted to eat every single meal there every day, but we knew we couldn’t because we had to experience other food while we were on our vacation. Grassy Flats has another location down the street 5 minutes away called Bongos, which is so much fun! It’s not a hotel, it’s a fun/party place with water sports and multiple bars, music, and once again, excellent food and bartenders! Jasmin was covering the bar the night we visited Bongos and her drinks are amazing! She is awesome, too! So friendly, so fun, and made us want to go to this fun party place every day! The one and only negative I would mention is that our room needed a little “TLC”. It was VERY CLEAN, which is the most important thing and all we care about. But, I do think it probably needs a couple of pieces of furniture that is in better shape but other than that, our experience was OUTSTANDING!
Stayed 7 nights in Oct 2025

10/10 Excellent

Rolando

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
The place is beautiful and very relaxing the staff very nice and accommodating the only thing that needs updating is the mattresses not very comfortable other than that is a hidden gem
Stayed 2 nights in Oct 2025

10/10 Excellent

Pamela

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Really nice & clean resort. Amazing views! Great service & enjoyed the kayaking. We’ll be back again to visit!
Stayed 1 night in Oct 2025

10/10 Excellent

Kelly, Lake Oswego

Stayed 2 nights in Sep 2025

10/10 Excellent

Trisha

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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!
Stayed 4 nights in Sep 2025

10/10 Excellent

Luciano

Travelled with family, Travelled with pets
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
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.
Stayed 2 nights in Aug 2025

8/10 Good

BRETT

Travelled with family
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The only thing we were disappointed about was the smell from the seaweed which there wasn’t anything they could do about that, but it reeked.
Stayed 1 night in Sep 2025

10/10 Excellent

jason, Hamilton

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
This property is beautiful. The staff was so nice. We enjoyed our stay very much!
Stayed 4 nights in Sep 2025

10/10 Excellent

Jarett

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great place to stay. 3 night getaway with my wife and loved it. Staff is very friendly!
Stayed 3 nights in Sep 2025

10/10 Excellent

Alexandra

Stayed 2 nights in Aug 2025

10/10 Excellent

John

Stayed 3 nights in Sep 2025

10/10 Excellent

Victoria

Stayed 2 nights in Aug 2025

10/10 Excellent

Anthony

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Staff was very attentive and available.
Stayed 3 nights in Aug 2025

6/10 Okay

Enrico, Poughkeepsie

Stayed 3 nights in Aug 2025