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Marathon
Grassy Flats Resort & Beach Club
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compared to Booking.com
Check rooms and rates
From510US$ /night
Check-in
16Mar2026Select date
Check-out
17Mar2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About Resort

58182 Overseas Hwy,Marathon Fl 3305, Marathon, Florida, United States, FL 33050
-
Near Sombrero Beach
Great
8.8
9.4
/10
4.7
/5

Loved by Grassy Flats Resort & Beach Club guests

  • Well-equipped hotel
  • Beautiful rooms
  • Adults-only pool
  • Helpful staff
  • Sandy beach
"It was very refreshing to find accommodation in the US where the owner is passionate about being eco friendly and plastic free."
Alixe from United Kingdom
read full review
"The restaurant might be the best you will find in the Keys, with an outstanding kitchen, great atmosphere and on the water."
Marc from United States
read full review

Grassy Flats Resort & Beach Club, a 3-star Marathon hotel with an 8.8/10 rating on Booking.com, focuses on eco-friendly practices and sustainable hospitality. Guests can enjoy beach access, action water sports, and a variety of dining options at this family-owned boutique resort.

Rooms & Amenities

Grassy Flats Resort & Beach Club features various spacious accommodations, including Galleon Suites and Three Bedroom Suites, equipped with full kitchens, private balconies, and plush bedding. Each suite and room offers modern amenities like complimentary Wi-Fi and stunning ocean views.

Dining Options

Dining options include The Rhum House, showcasing locally sourced seafood in an upscale setting, and Barrel & Bale, which emphasizes craft cocktails and casual fare. Both venues prioritize sustainability and feature a unique menu curated from local ingredients.

Leisure & Activities

Grassy Flats offers various leisure activities such as kayaking and paddleboarding, with equipment provided for guests. Nearby attractions include Curry Hammock State Park, known for its hiking trails and water sports, and Sombrero Beach, famed for its sandy shores.

Services & Location

The resort promotes eco-friendly programs including zero-waste initiatives and organic gardening practices on-site. Grassy Flats Resort & Beach Club is situated approximately 59 miles from Key West International Airport, providing easy access for travelers.

Must-do experiences

  • Visit the Dolphin Research Center for an unforgettable interaction.
  • Savor the fresh seafood at Keys Fisheries for lunch by the water.
  • Kayak through the mangroves at Crane Point Hammock for scenic views.
  • Take a sunset cruise with Islander Watersports for stunning sights.
  • Explore the history at the Florida Keys Heritage Center in town.
View all

Select your room type

Grassy Flats Resort & Beach Club offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Studio Ocean View Adults Only
Studio Ocean View Adults Only
2 persons
455 sq. feet 
1 King-size bed
Shower
Heating
room details
Deluxe King Studio Adults Only
Deluxe King Studio Adults Only
2 persons
500 sq. feet 
1 King-size bed
Shower
Heating
room details
Standard Double Room Adults Only
Standard Double Room Adults Only
2 persons
500 sq. feet 
2 King Size Beds
Shower
Heating
room details
King Studio Adults Only
King Studio Adults Only
2 persons
500 sq. feet 
1 King-size bed
Shower
Heating
room details
Click button to see more rooms
Show all rooms
Show all roomsLess

Price and Room Availability Calendar

Check availability and prices for your dates now!

Facilities

Grassy Flats Resort & Beach Club offers amenities for your comfortable stay and unforgettable experiences
Facilities: Great
8.9/10Review score

General

  • No smoking on site
  • Wi-Fi
  • Parking
  • Safe deposit box
  • Express check-in/ -out
  • Concierge desk
  • Pets allowed
  • Rooms/ Facilities for disabled
  • Wheelchair access
  • Lift
  • ATM/Cash machine
  • Coffee shop
  • Fireplace
  • Smoke detectors
  • Fire extinguishers
  • Key card access
  • Key access

Sports & Fitness

  • Wind surfing

Guest Parking

  • Electric kettle
  • Cookware/ Kitchen utensils

Services

  • Housekeeping
  • Welcome drink
  • Happy hour

Dining

  • Restaurant
  • Poolside snack bar

Children

  • Board games

Facilities for people with disabilities

  • Toilet for disabled

Spa & Leisure

  • Saltwater pool
  • Beach umbrellas
  • Sun loungers
  • Aqua park
  • Jacuzzi
  • Pool with view
  • Shallow end

Room features

  • Air conditioning
  • Heating
  • Sitting area
  • Garden furniture
  • Tea and coffee facilities
  • Dining table

Bathroom

  • Free toiletries
  • Sink

Self-catering

  • Electric kettle
  • Cookware/ Kitchen utensils

Media

  • Flat-screen TV

Room decor

  • Parquet floor
Show more

Dining Onsite

Grassy Flats Resort & Beach Club offers a delightful array of dining experiences, each with its own unique flair. From fine dining surrounded by elegant decor to casual spots steeped in local charm, each venue invites guests to savor the flavors of the Keys infused with a touch of homegrown warmth.

The Rhum House - fine dining

Fine Dining
Ambiance
Sophisticated setting with tasteful decor, perfect for intimate dinners.
Key Offerings
An exquisite menu featuring carefully crafted dishes made from local ingredients, ideal for a romantic evening.
Reservation
Recommended to ensure a table.
Open for dinner from 5:00 PM to 9:00 PM, daily.

Barrel & Bale

Bar and Lounge
Ambiance
Casual and laid-back, focused on sustainability with a relaxed vibe.
Key Offerings
Aiming to be a zero-waste bar, featuring creative cocktails and shareable bites.
Reservation
Not needed.
Hours vary; primarily open for evening hours.

Herbie's

Casual Dining
Ambiance
Charming and friendly, perfect for a quick bite during beach outings.
Key Offerings
Renowned for its refreshing craft beers and classic fries, offering a taste of local brews.
Reservation
Not needed.
Hours vary; primarily open for lunch and dinner.

Bongo's

Tropical Cuisine
Ambiance
An enchanting setting amidst tropical trees and herb gardens, inviting a relaxed dining experience.
Key Offerings
Famous for its fresh tropical flavors, with a menu that highlights local produce and ingredients.
Reservation
Not needed.
Hours vary; open for lunch and dinner.

Grassy Flats Resort & Beach Club Location

58182 Overseas Hwy,Marathon Fl 3305, Marathon, Florida, United States, FL 33050
Map view
58182 Overseas Hwy,Marathon Fl 3305, Marathon, Florida, United States, FL 33050
City landmarks
Landmark
Dolphin Research Center
3100 ft
Bridge
Seven Mile Bridge
4400 ft
Park
Curry Hammock State Park
4400 ft
Landmark
Key Vaca
3300 ft
Island
Grassy Key
5100 ft
Landmark
Keys Cable Park
1.1 mi
Landmark
Sunset Bay Park on Grassy Key
1.1 mi
Island
Crawl Key
1.8 mi
Landmark
Squirrels Key Camp
1.7 mi
Island
Long Point Key
2.1 mi
Island
Little Crawl Key
2.3 mi
Landmark
Hawks Cay Boulevard
2.8 mi
Landmark
Sundance Watersports
2.9 mi
Spa Centre
The Calm Waters Spa
3.0 mi
Nearby
58901 Overseas Hwy
Dolphin Research Center
3100 ft
Key Vaca
3300 ft
Restaurants
Grassy Key Outpost
200 ft
58152 Overseas Hwy
Hideaway Cafe
2000 ft
57784 Overseas Hwy Rainbow Bend Resort
Explore Marathon
Explore Local Experiences
Top Attractions
Activities
Dining
Entertainment
Dolphin Research Center
Dolphin Research Center
12 minutes' walk
Dolphin Research Center hosts interactive programs with dolphins. Learn about marine life and enjoy daily educational presentations.
Seven Mile Bridge
Seven Mile Bridge
16 minutes' walk
Seven Mile Bridge offers stunning views and is a great spot for photos. It's a renowned symbol of the Florida Keys.
Curry Hammock State Park
Curry Hammock State Park
16 minutes' walk
Curry Hammock State Park features hiking trails, beachfront access, and opportunities for kayaking in tranquil waters.
Sunset Bay Park on Grassy Key
20 minutes' walk
Sunset Bay Park provides scenic views and picnic spots. It's perfect for enjoying sunsets and spotting wildlife.
Keys Cable Park
20 minutes' walk
Keys Cable Park offers wakeboarding and paddleboarding. Rentals available for thrill-seekers looking for adventure.
Curry Hammock State Park
Curry Hammock State Park
16 minutes' walk
Curry Hammock Park offers relaxation and nature trails, perfect for hiking or simply lounging on the beach.
Grassy Key Outpost
5 minutes' walk
Grassy Key Outpost offers casual dining with a focus on local seafood. Enjoy fresh dishes in a laid-back atmosphere.
Hideaway Cafe
Hideaway Cafe
8 minutes' walk
Hideaway Cafe serves American cuisine with a coastal twist. Known for its inviting ambiance and delicious brunch options.
Sundance Watersports
50 minutes' drive
Sundance Watersports offers water activities like jet skiing and snorkeling with rental services and guided tours.
Seven Mile Bridge
Seven Mile Bridge
16 minutes' walk
Seven Mile Bridge provides a scenic backdrop for evening strolls. It's a favorite spot for catching breathtaking sunsets.
Getting around
City Centre
Marathon15 min  ·  6.2 mi
Airports
Key West International Airport (EYW)136 min  ·  56.1 mi
Bus
Bus stop20 min  ·  8.3 mi
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Property information and rules
Check-in
from 16:00-21:00
Check-out
from 07:00-11:00
Guest Parking
Private parking is possible on site for free.
Internet
Wireless internet is available in for free.
Children & extra beds
There are no cots provided in a room. 
Pets
Pets are allowed on request.
Number of rooms:
38
Property is also known as
grassy flats resort
grassy flats resort and beach club

Reviews and Ratings

Feedback about Grassy Flats Resort & Beach Club from previous guests about their experience.
Review score
Based on 450 verified reviews
8.9/10
Great
92%
Recommend
Breakfast
7.5/10
Cleanliness
9.1/10
Comfort
9.1/10
Facilities
8.9/10
Free Wi-Fi
8.5/10
Location
8.9/10
Paid Wi-Fi
6.9/10
Staff
9.4/10
Value for money
8.3/10
Pros
Adult pool
Ocean view
Friendly staff
Kayak rental
Cons
Disappointing breakfast
Algae smell
Clomping noise
Closed restaurant
Guest reviews
based on 694 reviews
8.8/10
No reviews yet on our siteUnfortunately, our guests have not yet left any reviews for this hotel, but you can read reviews from Booking.com.
Open reviews
FAQs
About Grassy Flats Resort & Beach Club
What are the check-in and check-out times at Grassy Flats Resort & Beach Club?
Check-in is at 16:00 and check-out is at 11:00.
Is parking available at Grassy Flats Resort & Beach Club?
Free private parking is available on-site without the need for a reservation.
What are some restaurants located near Grassy Flats Resort & Beach Club?
Nearby dining options include Herbie's and the Lagoon Saloon Surf Shoppe, both less than 3 km away.
What dining options are available on-site at Grassy Flats Resort & Beach Club?
The hotel offers Rhum House dining and also features a bar, Barrel & Bale.
Which pool facilities can guests access at Grassy Flats Resort & Beach Club?
Guests can enjoy a saltwater pool, heated pool, and poolside bar with a view.
What room amenities are available at Grassy Flats Resort & Beach Club?
Rooms feature air conditioning, a flat-screen TV, a refrigerator, and some include kitchen facilities.
What recreational activities can guests participate in at Grassy Flats Resort & Beach Club?
Guests have access to beach activities, water sports, bicycle rentals, and windsurfing.
What attractions are located near Grassy Flats Resort & Beach Club?
Attractions such as the Dolphin Research Center and Florida Keys Aquarium Encounters are within 9 km.
Does Grassy Flats Resort & Beach Club offer Wi-Fi access?
Free Wi-Fi is available throughout the property.
What type of hotel is Grassy Flats Resort & Beach Club?
The hotel is an eco-friendly, family-oriented beachfront resort.
What unique features does Grassy Flats Resort & Beach Club offer?
The resort incorporates sustainable practices and offers complimentary kayaks and paddleboards for guests.

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16Mar2026Select date
Check-out
17Mar2026Select date
Rooms and Guests2 Guests, 1 Room
  • Overview
  • Rooms
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  • Location
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