Book on our site
Up to 10% cheaper
than Booking.com
Check rooms and rates
From536US$ /night
Check-in
09Jan2026Select date
Check-out
10Jan2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

58182 Overseas Hwy,Marathon Fl 3305, Marathon, Florida, United States, FL 33050
-
Near Sombrero Beach
Great
8.8
9.4
/10
4.8
/5

Location

Grassy Flats Resort & Beach Club is located on Grassy Key in the Florida Keys, offering direct access to pristine beaches and a variety of water sports. The hotel is in close proximity to action-packed activities such as kiteboarding, sailing, and wakeboarding. An eco-conscious retreat, the resort emphasizes sustainable practices while providing a unique experience in a delicate ecosystem.

Dining

The on-site dining options include The Rhum House, which features locally caught seafood prepared with responsibly sourced ingredients. Guests can also explore hand-crafted cocktails and thoughtfully sourced wines from family-owned wineries. Grassy Flats adopts a zero-waste bar initiative, adding to the sustainable dining experience.

Accommodations

Grassy Flats offers a range of oceanfront accommodations, including the adults-only Wreckers House and spacious Conch House suites. Each room features private balconies with views of the ocean, along with plush bedding and modern amenities. The Galleon Suites are adorned with gold accents and provide sweeping views, perfect for relaxation.

Sustainability Initiatives

The hotel operates on a sustainable model, eliminating single-use plastics and using local organic composting. Grassy Grown initiative focuses on growing produce used in the restaurant, including tropical fruits and herbs. The Seaweed Composting Program helps maintain beautiful beachfronts while contributing to the organic gardens.

Activities

Guests have access to complementary kayaks and paddle boards, allowing exploration of the unique Florida Keys ecosystem. The resort accommodates all guest ages, ensuring fun for families and adventure seekers alike. A range of laid-back activities is also available, including biking and paddleboarding.

Highlights

Location: Direct access to pristine beaches

Dining: The Rhum House with locally caught seafood

Sustainability: Grassy Grown initiative for organic produce

Activities: Complementary kayaks and paddle boards

Must-do experiences

  • Kayak through the mangroves at the nearby Florida Keys Kayak Tours.
  • Savor fresh stone crab claws at Keys Fisheries on the waterfront.
  • Visit the Turtle Hospital to learn about sea turtle rehabilitation.
  • Stroll the picturesque streets of Marathon's historic Pigeon Key.
  • Catch a sunset at Sombrero Beach for breathtaking ocean views.
View all

Select your room type

The hotel offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Studio Ocean View Adults Only
2 persons
42 m² 
1 King-size bed
Shower
Heating
Deluxe King Studio Adults Only
2 persons
46 m² 
1 King-size bed
Shower
Heating
Standard Double Room Adults Only
2 persons
46 m² 
2 King Size Beds
Shower
Heating
King Studio Adults Only
2 persons
46 m² 
1 King-size bed
Shower
Heating
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

The hotel offers amenities for your comfortable stay and unforgettable experiences

General

  • No smoking on site
  • Free 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 features an array of delightful dining experiences that celebrate local flavors and culinary creativity. From fine dining to casual fare, each venue offers a unique atmosphere and memorable meals amidst breathtaking surroundings.

The Rhum House - fine dining

Fine dining with a focus on locally inspired dishes
Ambiance
Elegant setting with a refined atmosphere, perfect for an intimate evening
Key Offerings
A concise menu crafted with love highlights seasonal offerings; guests are invited to savor exquisite entrees from land and sea. Enjoy the serene ambiance for dinner while soaking in the unique flavors of the region.
Reservation
Recommended
Dinner service from 5:00 PM to 9:00 PM daily

Barrel & Bale

Casual bar with a zero-waste concept
Ambiance
Eclectic space combining sustainability and comfort, a casual spot for relaxation
Key Offerings
Innovative cocktails crafted from local ingredients and a commitment to a zero-waste philosophy provide an enjoyable drink selection. The focus is on community and environmental responsibility, making it a perfect stop for casual evenings.
Reservation
Not needed
Open for dinner; specific hours not detailed

Herbie's

Casual fare specializing in snacks and beverages
Ambiance
Charming and laid-back spot, ideal for a quick bite or refreshing drink
Key Offerings
Famous for its fries and a variety of craft beers, Herbie's is the go-to destination for guests seeking comfort food in a relaxed atmosphere. Perfect for a casual gathering after a day of adventure.
Reservation
Not needed
Hours vary, details not specified

Bongo's

Casual dining set among tropical gardens
Ambiance
An oasis filled with fruit trees and herb gardens, perfect for leisurely meals
Key Offerings
A menu that highlights fresh, tropical flavors accompanied by a tranquil outdoor setting, Bongo's invites guests to savor the essence of the Keys while enjoying a leisurely meal amid nature's beauty.
Reservation
Not needed
Hours vary, details not specified

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
Nearby
58901 Overseas Hwy
Dolphin Research Center
920 m
Key Vaca
1.0 km
Restaurants
Grassy Key Outpost
40 m
58152 Overseas Hwy
Hideaway Cafe
600 m
57784 Overseas Hwy Rainbow Bend Resort
Explore Marathon
Local Activities & Dining Near Grassy Flats Resort
Top Attractions
Activities
Dining
Entertainment
Dolphin Research Center
Dolphin Research Center
12 minutes' walk
Interactive dolphin experiences and educational programs highlight this conservation-focused facility.
Seven Mile Bridge
Seven Mile Bridge
16 minutes' walk
Iconic bridge offering stunning views and a great spot for walking, biking, and photography.
Curry Hammock State Park
Curry Hammock State Park
16 minutes' walk
Beautiful park with hiking trails, picnic areas, and beach access for outdoor enthusiasts.
Grassy Key
Grassy Key
19 minutes' walk
A quiet natural area perfect for kayaking and enjoying the serene coastline.
Keys Cable Park
20 minutes' walk
Thrilling water sports like wakeboarding and paddleboarding. Rentals available on-site.
The Calm Waters Spa
The Calm Waters Spa
50 minutes' drive
Relaxing spa with a full range of services including facials and massages. Ideal for unwinding.
Grassy Key Outpost
5 minutes' walk
Casual eatery serving fresh seafood and island specialties in a laid-back atmosphere.
Hideaway Cafe
Hideaway Cafe
8 minutes' walk
Beachfront restaurant offering a romantic dining experience with ocean views and seafood dishes.
Local Bars and Live Music Venues
10 minutes' drive
Vibrant nightlife scene featuring live music and casual bars perfect for evening relaxation.
Sunset Bay Park
20 minutes' walk
Scenic park with picnic areas and beautiful sunset views, suitable for families and all ages.
Getting around
City Centre
Marathon15 min  ·  10.0 km
Airports
Key West International Airport (EYW)136 min  ·  90.1 km
Bus
Bus stop20 min  ·  13.3 km
Want to see Exclusive Early Booking Rate?
Get exlusive rates right now!
Check Rates
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
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
FAQs
About Grassy Flats Resort & Beach Club
What are the check-in and check-out times at Grassy Flats Resort & Beach Club?
Check-in starts at 16:00 and check-out is by 11:00.
Is parking available at Grassy Flats Resort & Beach Club?
Private parking is available on-site for free and does not require a reservation.
What nearby attractions are accessible from Grassy Flats Resort & Beach Club?
Nearby attractions include the Dolphin Research Center (3 km), Florida Keys Aquarium Encounters (9 km), and Curry Hammock State Park Beach (6 km).
What dining options are offered at Grassy Flats Resort & Beach Club?
The resort features an on-site restaurant, Rhum House, and a bar called Barrel & Bale, which offers a variety of cocktails and dining options.
What amenities are included in the rooms at Grassy Flats Resort & Beach Club?
Rooms are equipped with air conditioning, a flat-screen TV with cable channels, a refrigerator, free toiletries, and some feature private balconies.
What is the distance from Grassy Flats Resort & Beach Club to Key West International Airport?
The resort is located 89 km from Key West International Airport.
Is there Wi-Fi available at Grassy Flats Resort & Beach Club?
Free Wi-Fi is available throughout the property.
What are some nearby restaurants to Grassy Flats Resort & Beach Club?
Nearby dining options include Herbie's Bar & Chowder House, Bongo's, and the Lagoon Saloon, all within 10 km.

Next best alternative

Consider them for your next trip.
Check-in
09Jan2026Select date
Check-out
10Jan2026Select date
Rooms and Guests2 Guests, 1 Room
Need more options?
Check Top hotels near Grassy Flats Resort & Beach Club
Gulf View Waterfront Resort Marathon Exterior photo
Mobile-only price

Gulf View Waterfront Resort Marathon

7.9
Very good383 reviews
855m from property
USD 125USD 112
per night
Coco Plum Beach & Tennis Club & Marina Marathon Exterior photo
Mobile-only price

Coco Plum Beach & Tennis Club & Marina Marathon

8.5
Great53 reviews
6779m from property
USD 380USD 342
per night
Hampton Inn Marathon - Florida Keys Exterior photo
Mobile-only price

Hampton Inn Marathon - Florida Keys

8.5
Great779 reviews
7072m from property
USD 166USD 149
per night