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Grassy Flats Resort & Beach Club

4.0 star property
Travelers escape to this tropical paradise with a private beach where they can soak up the sun or enjoy dinner with ocean views

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Photo gallery for Grassy Flats Resort & Beach Club

Balcony view - Grassy Flats Resort & Beach Club (Marathon)
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Beach bar - Grassy Flats Resort & Beach Club (Marathon)
Balcony view - Grassy Flats Resort & Beach Club (Marathon)
Exterior - Grassy Flats Resort & Beach Club (Marathon)
Grassy Flats Resort & Beach Club boasts a private beach. Guests enjoy ocean views at The Rhum House restaurant and appreciate the attentive staff. The resort offers activities like kayaking, fishing, and ecotours for those wanting to explore beyond the poolside bar.

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Pet friendly
  • Parking included
  • Free WiFi

Room options

Available filters for rooms
Showing 7 of 7 rooms

View all photos for Family Suite, 2 Bedrooms

Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

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 drapes, iron/ironing board, free WiFi

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 drapes, iron/ironing board, free WiFi

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 drapes, iron/ironing board, free WiFi

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 drapes, iron/ironing board, free WiFi

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 - Adults Only

Luxury Room, 1 King Bed, Ocean View - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

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

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 - Adults Only

Deluxe Room, 1 King Bed, Oceanfront - Adults Only | Hypo-allergenic bedding, blackout drapes, iron/ironing board, free WiFi

Deluxe Room, 1 King Bed, Oceanfront - Adults Only

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

About the neighborhood

Located in Marathon, Grassy Flats Resort & Beach Club is by the ocean. The area's natural beauty can be seen at Curry Hammock State Park and Coco Plum Beach. The Turtle Hospital is another place to visit that comes recommended. Discover the area's water adventures with jet skiing, water skiing, and swimming nearby, or enjoy the great outdoors with ecotours. Visit our Marathon travel guide
Map
58182 Overseas Hwy, Marathon, FL, 33050

What's nearby

  • Dolphin Research Center
    Dolphin Research Center
    19 min walk - 1.1 miles
  • Curry Hammock State Park
    Curry Hammock State Park
    1 min drive - 1.1 miles
  • Crawl Key
    Crawl Key
    2 min drive - 1.5 miles
  • Coco Plum Beach, Florida Keys
    Coco Plum Beach
    10 min drive - 7.0 miles
  • Keys Cable Park
    1 min drive - 1.5 miles

Getting around

  • Marathon, FL (MTH-Florida Keys Marathon)
    9 min drive

Restaurants

  • The Island Fish Company
    6 min drive
  • Circle K
    7 min drive
  • Sparky's Landing Fish and Cocktails
    6 min drive
  • Circle K
    6 min drive
  • Angler & Ale
    4 min drive

About this property

Grassy Flats Resort & Beach Club

Upscale hotel remodeled in 2022 and located near Coco Plum Beach
Located close to Curry Hammock State Park, Grassy Flats Resort & Beach Club provides a poolside bar, a firepit, and a bar. Active travelers can enjoy fishing, rowing/canoeing, and windsurfing at this hotel. For some rest and relaxation, visit the sauna or the hot tub. The on-site local and international cuisine steakhouse, The Rhum House, features ocean views and dinner. Enjoy onsite activities like kayaking and sailing. Guests can connect to free in-room WiFi.
You'll also enjoy perks such as:
  • 2 outdoor pools along with sun loungers and pool umbrellas
  • Free self parking
  • Cooked-to-order breakfast (surcharge), bike rentals, and an electric car charging station
  • Beach umbrellas, charcoal grills, and multilingual staff
  • Guest reviews speak highly of the helpful staff and first-rate property condition
Room features
All guestrooms at Grassy Flats Resort & Beach Club feature comforts such as air conditioning, in addition to amenities like free WiFi.
More amenities include:
  • Recycling, LED light bulbs, and eco-friendly cleaning products
  • Eco-friendly toiletries and hair dryers
  • 43-inch flat-screen TVs with premium channels
  • Furnished balconies or patios, daily housekeeping, and electrical adapters/chargers

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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
  • 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
  • Elevator (36 inch 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 elevator
  • Wheelchair-accessible pool
  • Wheelchair-accessible public washroom
  • 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
  • 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: 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 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
Specific rooms only; pet-friendly rooms can be requested by contacting the property at the number on the booking confirmation

Children and extra beds

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

Property payment types

Important information

Fees

You'll be asked to pay the following charges at the property. Fees may include applicable taxes:

  • 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 have included all charges provided to us by the property.

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

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

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)

Frequently asked questions

Does Grassy Flats Resort & Beach Club have a pool?

Yes, this property has 2 outdoor pools. Pool access is from 7:00 AM–10:00 PM.

Is Grassy Flats Resort & Beach Club pet-friendly?

Yes, this property allows dogs with a maximum weight of up to 30 lbs per pet. There's a fee of USD 50 per accommodation, per night. Service animals are exempt from fees.

How much is parking?

Self parking is free at this property.

What time is check-in at Grassy Flats Resort & Beach Club?

Check-in start time: 4:00 PM; Check-in end time: 9:00 PM. Late check-in is available during limited hours.

What time is check-out at Grassy Flats Resort & Beach Club?

Check-out is at 11:00 AM. Late check-out is available for a fee (subject to availability).

Where is Grassy Flats Resort & Beach Club located?

Situated by the ocean, this hotel is within 1 mi (2 km) of Coco Plum Beach and Curry Hammock State Park. The Turtle Hospital is 10 mi (16 km) away.

Can I cancel my reservation for free and receive a full refund?

Yes, this property offers free cancellation on select room rates, because flexibility matters! Please refer to the property cancellation policy on our site for more details about any exclusions or requirements.

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Reviews

Grassy Flats Resort & Beach Club Reviews

9.4

Exceptional

9.8

Cleanliness

9.2

Location

9.6

Staff & service

9.4

Property conditions & facilities
Rating 10 - Excellent. 351 out of 442 reviews
Rating 8 - Good. 57 out of 442 reviews
Rating 6 - Okay. 25 out of 442 reviews
Rating 4 - Poor. 5 out of 442 reviews
Rating 2 - Terrible. 4 out of 442 reviews

Reviews

Verified

10/10 Excellent

Gerald

Liked: Cleanliness, staff & service, property conditions & facilities
All amenities were great!
Stayed 4 nights in Apr 2026
Verified

8/10 Good

DEBORAH LEE

Liked: Cleanliness, staff & service, property conditions & facilities
Disliked: Amenities
Yes the view was nice, the hotel staff was nice and the room was clean
View from room
Nice balcony with two chairs and table
Can’t see ocean from laying in bed
Cute bathroom
Stayed 2 nights in Mar 2026
Verified

10/10 Excellent

KAREN

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Every single part of our stay at Grassy Flats was 5/5! Staff, room, ocean view, pool, dining, market, beach, etc. highly recommend!
Stayed 2 nights in Mar 2026
Verified

10/10 Excellent

Daniel

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Was a very clean resort. Make sure you make a reservation if you would like to eat at the rhum house. On property market is a gem. Live music on the palm deck was great.
Stayed 6 nights in Apr 2026
Verified

10/10 Excellent

Kristine

Liked: Cleanliness
Friendly staff, great view from room, pool fine, many areas to lounge, “ store” nice and handy and fair priced.
Stayed 2 nights in Feb 2026
Verified

10/10 Excellent

Victoria

Liked: Cleanliness
Beach view was nice Breakfast not available
Stayed 4 nights in Mar 2026
Verified

10/10 Excellent

Jeffrey

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Relaxed location on the keys, not too busy and plenty of restaurants nearby and on location to have a different experience each night. Resort had friendly and helpful staff with plenty of activities on site to take advantage of. 2 beautiful pool areas, beach area with various activities available including biking, kayaking, paddle boarding, floating cabana, sauna & tiki bar. Enjoyed our stay very much!
View from our room
View from our room
Roof top bar & restaurant on site
Pool view
Stayed 6 nights in Mar 2026
Verified

10/10 Excellent

Steven

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful ocean view from our lovely room. Wonderful balcony and facilities.
Stayed 3 nights in Mar 2026
Verified

10/10 Excellent

Carl

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Our stay at the Grassy Flats Resort & Beach Club was outstanding. Superb location & grounds, facilities and staff. Two great dining options, the Palm Deck outdoors casual and the Rhum House indoors, upscale and also with a great Ocean view. The Market next door was extremely convenient for breakfast, lunch option. Lastly, the "house cat" Wilma roaming the grounds is a real sweety!
Stayed 5 nights in Mar 2026
Verified

10/10 Excellent

Lance

Liked: Cleanliness, staff & service, amenities
Staff was very friendly and helpful. Nice room at a beautiful location. Really enjoyed the beach and pools.
Stayed 4 nights in Feb 2026
Verified

10/10 Excellent

Vanetta

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean room. Ocean view beautiful. Pool wonderful
Stayed 2 nights in Mar 2026
Verified

8/10 Good

Stuart

Fabulous location with amazing views. Shout out to Mia in reception, very helpful and friendly.
Stayed 6 nights in Jan 2026
Verified

10/10 Excellent

daniele

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
Verified

8/10 Good

James

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The pool and pool area was nice. We liked how there was a separate adult pool from the kids pool. Also, the room was clean and had clean towels everyday. But, they allow dogs which was not a pleasant experience. Yipey dogs during the day & night was very disturbing and annoying.
Stayed 4 nights in Mar 2026
Verified

10/10 Excellent

Andrea

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

10/10 Excellent

Dorothy

Liked: Cleanliness, amenities, property conditions & facilities
Amazing stay, perfect small hotel with lot of activities
Stayed 1 night in Oct 2025
Verified

10/10 Excellent

Joseph

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
Verified

10/10 Excellent

Amanda

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We had an amazing time, and enjoyed our stay. Place is beautiful, staff is friendly and so accommodating! Didn’t know the Palm Deck and tiki bars and Rhum House had limited hours. They weren’t open at all our first couple days, and didn’t open until after 5 the last day there. If this was advertised I missed it. That’s the only thing I would change, having a bar on the property open more hours. Other than that we definitely enjoyed our stay here!
Stayed 3 nights in Apr 2026
Verified

10/10 Excellent

Melanie

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
Verified

10/10 Excellent

Steven

Liked: Cleanliness, amenities, property conditions & facilities
Beautiful grounds, clean rooms.and nice staff. Great location.
Stayed 3 nights in Dec 2025
Verified

10/10 Excellent

David

Liked: Cleanliness, property conditions & facilities
Great staff, check in, site tour and dinner in the restaurant.
Stayed 1 night in Nov 2025
Verified

8/10 Good

Debbie

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

8/10 Good

Kevin

Liked: Cleanliness, property conditions & facilities
Rooms were clean but the staff were nice and helpful. Both their restaurants were closed the whole time.
Stayed 4 nights in Feb 2026
Verified

10/10 Excellent

Kathleen

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

6/10 Okay

Madeline

Liked: Cleanliness, staff & service, property conditions & facilities
Noisey on the lower level, can hear guests stomping around above you. Hard beds and pillows. Good shower and nice balcony though. Pool was nice. Tiki bar is limited during the day. Didn't love that the rooftop bar and rhum house was closed Tuesday and Wednesday as the other restaurants in the area get very crowded.
Stayed 3 nights in Mar 2026