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Grassy Flats Resort & Beach Club

Property class: 4

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Photo gallery for Grassy Flats Resort & Beach Club

A wooden deck with a pool and chairs overlooking a beach with palm trees. - Grassy Flats Resort & Beach Club (Marathon)
Property video
A beach with a wooden walkway leading to the water, palm trees, and a clear sky. - Grassy Flats Resort & Beach Club (Marathon)
A pool area with palm trees and a view of the ocean. - Grassy Flats Resort & Beach Club (Marathon)
A hotel room with a sofa, a desk, a chair, a TV, and a balcony with curtains. - Grassy Flats Resort & Beach Club (Marathon)
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 canoeing, fishing, and paddleboards 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, windsurfing, and sailing. Guests can connect to free in-room WiFi.

Reviews

9.4 out of 10
Exceptional

Popular amenities

  • Parking included
  • Free WiFi

Off-peak, on budget: 30% or more off select hotels in our fall sale

Skip the crowds, keep the savings. AARP members save more after Labor Day. Book by Oct 7, 2026.

Room options

Available filters for rooms
Showing 7 of 7 rooms

View all photos for Family Suite, 2 Bedrooms

A bedroom with a bed, a nightstand with a lamp, a painting of a sunset, and a view through a door to an outdoor area.

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

A bedroom with a bed, nightstands, a lamp, a painting, and a bathroom visible through an open door.

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

A bedroom with a bed, a nightstand, a lamp, a dresser, a television, and a window with curtains.

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

A hotel room with two beds, a desk, a chair, a ceiling fan, and a large window with curtains.

Standard Double Room, Ocean View - Adults Only

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

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

A hotel room with a large bed, wooden headboard, two bedside tables with lamps, a desk with a chair, and a ceiling fan.

Standard Room, Ocean View - Adults Only

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

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

A four-poster bed with a ceiling fan, a dark brown leather sofa, and a small round table with two chairs.

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

A hotel room with a large bed, wooden ceiling, a desk with a chair, a sofa, and a view of the outdoors.

Deluxe Room, 1 King Bed, Oceanfront - Adults Only

9.6 out of 10
Exceptional
(5 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

  • A dolphin sculpture and a sign for the Dolphin Research Center.
    Dolphin Research Center
    19 min walk - 1.1 miles
  • A beach with kayaks and a sign for kayak rentals at Ranger Station.
    Curry Hammock State Park
    1 min drive - 1.1 miles
  • A sunset over a wet landscape with a reflection of the sky.
    Crawl Key
    2 min drive - 1.5 miles
  • Grassy Key Marina
    1 min drive - 0.9 miles
  • Keys Cable Park
    1 min drive - 1.5 miles

Getting around

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

Restaurants

  • Circle K
    7 min drive
  • The Island Fish Company
    6 min drive
  • Angler & Ale
    4 min drive
  • Circle K
    6 min drive
  • Sweet Savannah's of the Florida Keys
    7 min drive

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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 on-site 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% organic food
  • Comprehensive food waste policy
  • Local artist showcase
  • Locally sourced food prioritized
  • No plastic coffee stirrers
  • No plastic drinking straws
  • No plastic soft drink bottles
  • No plastic water bottles
  • Non-plastic coffee stirrers available
  • Non-plastic drinking straws available
  • Renovated entire property - March 2022
  • Reusable cups
  • Reusable tableware
  • Smoking not allowed
  • Some LED lighting used
  • 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
  • Electrical adapters
  • Iron/ironing board
  • 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

  • American Express
  • Discover
  • Mastercard
  • Visa

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
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

9.6

Cleanliness

9.2

Location

9.6

Staff & service

9.2

Property conditions & facilities
Rating 10 - Excellent. 383 out of 499 reviews
Rating 8 - Good. 73 out of 499 reviews
Rating 6 - Okay. 29 out of 499 reviews
Rating 4 - Poor. 7 out of 499 reviews
Rating 2 - Terrible. 7 out of 499 reviews

Reviews

Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The room was really nice with the balcony and view! I
Stayed 2 nights in Aug 2026
Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The beach isn't great, and there was a bad odor due to the sargassum. Otherwise, everything was fine. The hotel staff provides good service overall, and the cleanliness of the rooms and common areas is also good. I recommend the place; it is very welcoming, and the adults-only area is incredibly peaceful if you are looking to relax.
Stayed 2 nights in Sep 2026
Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great location, beautiful room with sea view balcony. Would stay again
Stayed 2 nights in Jun 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
no coffee maschine in room or, completmentary breakfast
Stayed 4 nights in Aug 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Loved the adult pool area.
Stayed 4 nights in May 2026
Verified review

4/10 Poor

Disliked: Amenities, property conditions & facilities
Really disappointed that nobody emailed before we arrived to let us know that most of the resort would be closed down and that the resort would resemble a ghost town! That being said the rooms were lovely and clean. Not so much the communal areas they were quite tatty! The smell of the sargassum all piled up was at times really bad.
Stayed 3 nights in Sep 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff were nice. The rooms were cleaned daily and
Stayed 7 nights in Jun 2026
Verified review

10/10 Excellent

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

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Clean newly renovated. Staff was so friendly. We had a great time. Highly recommend
Stayed 3 nights in May 2026
Verified review

6/10 Okay

Liked: Cleanliness, staff & service
Disliked: Amenities, property conditions & facilities
Booked to escape some of the miami heat wave , a/c was barely cooling the room , room was in rough shape with a really bad paint job, we couldn’t spend even 5min outside in the beach due the tons of seaweed producing horrible odors . Tiki bar was pretty good , . Hotel restaurant is pretty good but not worth the price tag. Market shop coffee was great , but gets crowded fast and long time waiting to get served.
Stayed 3 nights in Jul 2026
Verified review

8/10 Good

Liked: Staff & service, amenities, property conditions & facilities
It was a great stay. The rooms are spacious. The views are lovely. The first room we had had a roach problem and we needed to move to a new room. The second room was perfect.
Stayed 2 nights in Jun 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Hotel is always excellent from amenities to service to cuisine. The land and sea market is fantastic for a meal and anything you need for your room. From excellent wines to fruit, cheese to their black grouper fish sandwich. everythis is wonderful. Excellent on site restaurant the Rhum House, fishing charters, Hotel is owner managed. bongos up the street for cable water skiing, outdoor music food..it is just a WIN all the way around.
Stayed 1 night in Jun 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nice pol and hot tub. The restaurant up front serves breakfast and fresh baked items along with lunch options. Their food and coffee was excellent!
Stayed 3 nights in Apr 2026
Verified review

8/10 Good

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 review

10/10 Excellent

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 review

10/10 Excellent

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 review

10/10 Excellent

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

10/10 Excellent

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

10/10 Excellent

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 review

10/10 Excellent

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 review

10/10 Excellent

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 review

10/10 Excellent

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 review

10/10 Excellent

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 review

10/10 Excellent

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

10/10 Excellent

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