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Grassy Flats Resort & Beach Club

4.0 star property
VIP Access

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Photo gallery for Grassy Flats Resort & Beach Club

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

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
    ‪19 min walk‬
  • Place, Curry Hammock State Park
    ‪1 min drive‬
  • Place, Crawl Key
    ‪2 min drive‬
  • Airport, Marathon, FL (MTH-Florida Keys Marathon)
    ‪11 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 | Hypo-allergenic bedding, blackout curtains, iron/ironing board

Standard Double Room, Ocean View - Adults Only

9.6 out of 10
Exceptional
(17 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 | Hypo-allergenic bedding, blackout curtains, iron/ironing board

Standard Room, Ocean View - Adults Only

9.8 out of 10
Exceptional
(29 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 | Hypo-allergenic bedding, blackout curtains, iron/ironing board

Luxury Room, 1 King Bed, Ocean View

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

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

Deluxe Room, 1 King Bed, Oceanfront | Hypo-allergenic bedding, blackout curtains, iron/ironing board

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

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 on-site. Change of towels is available on request
Grassy Flats Resort & Beach Club offers 38 accommodations, which are accessible via exterior corridors and feature a hairdryer and an iron/ironing board. Rooms open to furnished balconies or patios. 43-inch flat-screen televisions come with premium cable channels.

Guests can surf the web using complimentary wireless Internet access. Additionally, rooms include free toiletries and blackout curtains. Hypo-allergenic bedding, change of towels and change of bedsheets can be requested. Housekeeping is provided on a daily basis.

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 that 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, multilingual staff and a lift
  • On-site recreation includes a sauna, sailing and kayaking
  • Guests have great things to say about the overall condition of the property and the helpful staff
  • 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 4-star Marathon hotel is smoke free.

For a fee, guests can enjoy a cooked-to-order breakfast daily from 6:00 AM to 11:00 AM.
The Rhum House – Overlooking the ocean, this steakhouse specialises in local and international cuisine and only serves dinner. 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 specialises in local cuisine and serves dinner and light fare. Happy hour is offered. Open selected days.
Grassy Key Market – This coffee shop specialises 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 lb 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.
  • Cots (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 cots/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 and terraces, which may not be suitable for children; if you have any concerns, we recommend contacting the property prior to your arrival to confirm that 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. 344 out of 435 reviews
Rating 8 - Good. 57 out of 435 reviews
Rating 6 - Okay. 25 out of 435 reviews
Rating 4 - Poor. 5 out of 435 reviews
Rating 2 - Terrible. 4 out of 435 reviews

9.8/10

Cleanliness

9.6/10

Staff & service

9.0/10

Amenities

9.4/10

Property conditions & facilities

Reviews

10/10 Excellent

Joseph

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Clean, beautiful room with great view. Several good food and drink options. Great location on the water.
Stayed 7 nights in Jan 2026

10/10 Excellent

Jeffery Scott

Liked: Cleanliness, amenities, property conditions & facilities
Great place!
Stayed 5 nights in Jan 2026

8/10 Good

Jeanne

Liked: Cleanliness, staff & service, amenities
The resort is beautiful. Restaurant and bar onsite. Only 4 out of 5 stars because housekeeping was a bit lacking. Had to request tge bed be made up one day. Not all towels were changed & glasses not changed daily. Sort of disappointing for the price point.
Stayed 3 nights in Jan 2026

10/10 Excellent

Philip

Stayed 2 nights in Jan 2026

10/10 Excellent

Melanie

Travelled with group
Liked: Cleanliness, amenities, property conditions & facilities
This hotel was really lovely. The adults only pool and proximity to the water is amazing- the staff were friendly. I also like that the coffee opens at 6am.
Stayed 3 nights in Dec 2025

10/10 Excellent

Karen

Stayed 2 nights in Jan 2026

10/10 Excellent

Leann

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
The room was great and very clean with a spectacular view. The staff was extremely friendly and helpful. Housekeeping was great as well. We loved the pool area and beautiful views. We will definitely be back!
Stayed 7 nights in Jan 2026

10/10 Excellent

PATRICIA

Stayed 2 nights in Jan 2026

8/10 Good

Debbie

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
Staff was very kind. Room was clean beautiful views
Stayed 3 nights in Jan 2026

10/10 Excellent

mariya

Stayed 3 nights in Jan 2026

10/10 Excellent

John

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
We did not have breakfast there.
Stayed 2 nights in Jan 2026

10/10 Excellent

Mindy

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
The property and room were spotless. Very pretty, kind staff, and amenities excellent! We stayed in The Conch House and had everything we needed. We felt very welcome. We had an excellent meal at the Rhum House and found what we needed at the market. We very much enjoyed a relaxing and beautiful vacation at Grassy Flats!
Stayed 7 nights in Jan 2026

10/10 Excellent

Lisa

Liked: Cleanliness
This was out first stay at Grassy Flats Resort and Beach Club and wow!!! First, I would like to comment on how the staff goes out of their way to make sure you are well cared for. Everyone is so kind. And I have to say the bed (in room 208) had without a doubt, the most comfortable mattress we've ever slept on. It felt like we were sleeping on a cloud. Just incredible!!! The property is very clean and they keep the grounds nicely manicured. And last but mot least, Wilma, the resort princess...what a pretty kitty. Thank you Grassy Flats. We hope to return sooner than later.
Stayed 4 nights in Jan 2026

10/10 Excellent

Michael

Travelled with partner
Liked: Cleanliness, amenities, property conditions & facilities
Beautiful room and grounds. Everything was clean and well cared for. Staff was friendly and attentive. The views were glorious!
Stayed 3 nights in Jan 2026

10/10 Excellent

Andrea

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Breakfast was great
Stayed 3 nights in Dec 2025

10/10 Excellent

Glenn

Travelled with partner
Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean, quiet and serene resort. If you're looking to relax and chill out completely then this is the place. The staff were all super nice and helpful. Absolutely gorgeous sunrise view. The property all around is beautiful. Our room was perfect and the views from the balcony were stunning! The food and drinks were excellent and the pool and hot tub were clean and relaxing. The store on the property was very well stocked and could cook up whatever you bought from them. Would highly recommend Grassy Flats resort.
Stayed 4 nights in Jan 2026

10/10 Excellent

Janelle

Travelled with group
Liked: Cleanliness, staff & service, amenities
Room was beautiful and property was stunning!
Stayed 4 nights in Dec 2025

10/10 Excellent

Clayton

Liked: Cleanliness, staff & service, property conditions & facilities
Stayed 3 nights in Jan 2026

10/10 Excellent

Yelena

Liked: Cleanliness, amenities, property conditions & facilities
Beautiful resort, felt like a deserted island. Perfect to set! Staff was very friendly and helpful. Really enjoyed our quick getaway!!
Stayed 4 nights in Jan 2026

10/10 Excellent

Michael

Stayed 3 nights in Dec 2025

10/10 Excellent

daniele

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
fantastic place with great restaurant and all the staff super! will be back next year Daniele
Stayed 5 nights in Dec 2025

8/10 Good

Stephany

Stayed 3 nights in Dec 2025

10/10 Excellent

Ashley

Travelled with partner
Liked: Cleanliness, staff & service, property conditions & facilities
Need more options for dining
Stayed 6 nights in Dec 2025

10/10 Excellent

Kathleen

Travelled with partner
Liked: Cleanliness, property conditions & facilities
The staff was amazing!
Stayed 7 nights in Dec 2025

10/10 Excellent

Anupam

Travelled with family
Liked: Cleanliness, amenities, property conditions & facilities
The staff was exceptionally helpful and polite. We enjoyed the bar, grassy flat market and various watersports
Stayed 3 nights in Dec 2025