Hotels
United States
Marathon
Grassy Flats Resort & Beach Club
Owners access | Cheap hotel info & booking site – unofficial
logo
Select currency
  • AUD
    Australian dollar
  • BRL
    Brazilian real
  • BGN
    Bulgarian lev
  • CAD
    Canadian dollar
  • CNY
    Chinese yuan
  • CZK
    Czech koruna
  • DKK
    Danish krone
  • EUR
    Euro
  • HKD
    Hong Kong dollar
  • ILS
    Israeli new sheqel
  • JPY
    Japanese yen
  • MYR
    Malaysian ringgit
  • NZD
    New Zealand dollar
  • NOK
    Norwegian krone
  • PLN
    Polish zloty
  • GBP
    Pound sterling
  • RON
    Romanian leu
  • RUB
    Russian ruble
  • SAR
    Saudi riyal
  • SGD
    Singapore dollar
  • ZAR
    South African rand
  • KRW
    South Korean won
  • SEK
    Swedish krona
  • CHF
    Swiss franc
  • THB
    Thai baht
  • TRY
    Turkish lira
  • USD
    U.S. dollar
  • UAH
    Ukrainian hryvnia
My bookings
Contact us
Read our FAQs
75 photos
Book through our site
—up to 10% cheaper
than Booking.com
Check rooms and rates
From471US$ /night
Check-in
24Jan2026Select date
Check-out
25Jan2026Select 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
4.7
/5
Loved by guests
  • Adults-only pool
  • Friendly staff
  • Delicious cocktails
  • Beautiful views
"We loved that there was an adult only pool and hot tub - separate family friendly area - and both had lifts."
Mark from United States
read full review
"Beautiful views from our balcony, the rooftop breakfast patio, and pool Tiki bar."
Janice from United States
read full review
"They include free paddle boards and kayaks."
Victoria from United States
read full review

Location

Grassy Flats Resort & Beach Club is situated on Grassy Key, offering direct access to action sports and serene beach experiences. The resort is strategically positioned for activities like kiteboarding, eFoiling, and sailing. Guests can explore the unique Florida Keys ecosystem while enjoying water sports or kayaking, all included in their stay.

Rooms

Grassy Flats offers seven distinct room types, including the adults-only Wreckers House and spacious Three Bedroom Suites. All accommodations come with private balconies that provide stunning ocean views. Standard amenities include plush bedding, while specific rooms like the Galleon Suites feature claw foot tubs for added luxury.

Dining

The on-site Rhum House delivers a fine dining experience, with a menu that highlights locally caught seafood and sustainably sourced ingredients. The resort's drinking establishments work towards a zero-waste initiative, enhancing the local dining experience. Guests can enjoy thoughtfully sourced wines from family-owned wineries during their stay.

Eco-Friendly Initiatives

Grassy Flats operates under a strong commitment to sustainability, eliminating single-use plastics and promoting local organic composting. The Grassy Grown initiative supports the cultivation of herbs and vegetables directly used in the resort's culinary offerings. The Artists in Residency program allows local artists to showcase their works in the Conch House.

Entertainment and Activities

Guests at Grassy Flats can partake in various action-packed activities, with equipment for kayaking and paddleboarding provided at no additional cost. The resort also emphasizes community involvement and environmental stewardship with unique programs like seaweed composting. Daily sunset cocktail hours offer guests an oceanside experience to end their day.

Highlights

Location: Direct access to action water sports

Rooms: Seven distinct room types available

Dining: On-site Rhum House with local seafood

Eco-Friendly Initiatives: Grassy Grown initiative and composting

Entertainment: Equipment included for kayaking and paddleboarding

“Sustainability meets hospitality at this beachfront property; kayaks and paddleboards are complimentary, inviting guests to explore the waters. The zero-waste bar and elimination of single-use plastics underscore a commitment to the environment. I found the adults-only pool particularly appealing-a tranquil escape.”
Hotel logo
James DavidEditor-in-Chief at Cheaphotels
View all

Select your room type

The hotel provides a selection of rooms—doubles, family rooms, and suites—with perks like free cancellation, breakfast options, and great value deals
Studio Ocean View Adults Only
Studio Ocean View Adults Only
2 persons
455 sq. feet 
1 King-size bed
Ocean view
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

Room rates & availability calendar

See the best prices and book your dates today!

Amenities & services

Real traveler stories and honest reviews—no glossy ads, just authentic feedback to guide your booking

General

  • No smoking on site
  • Free Wi-Fi
  • Free 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 an array of delightful dining options that highlight local flavors in stunning surroundings. From elegant fine dining to casual spots infused with the spirit of the Keys, every meal promises an authentic taste of the region.

The Rhum House - fine dining

Caribbean-inspired fine dining
Ambiance
An elegant setting with a tranquil atmosphere, perfect for romantic dinners or special occasions.
Key Offerings
Featuring a concise menu crafted with care, dining here includes a selection of expertly prepared dishes that showcase the region's culinary influences. Open for dinner with an emphasis on sustainability and quality.
Reservation
recommended
17:00 - 21:00 daily

Barrel & Bale

Casual bar with a focus on local brews
Ambiance
A laid-back environment designed for relaxation, ideal for unwinding after a day of exploration.
Key Offerings
With a goal of zero waste, this unique bar highlights local craft beers and artisanal cocktails made from fresh, local ingredients, creating a responsible yet playful drinking experience.
Reservation
not needed
Hours vary

Herbie's

Casual dining with a focus on pub fare
Ambiance
A fun, vibrant space where visitors can relax and socialize.
Key Offerings
Known for delicious brews and crispy fries, Herbie's offers a true taste of casual dining amidst the lively pulse of the Keys.
Reservation
not needed
Hours vary

Bongo's

Garden-fresh casual dining
Ambiance
An inviting oasis surrounded by tropical fruit trees and herb gardens, providing a serene dining experience.
Key Offerings
Focusing on fresh ingredients from the garden, Bongo's delivers vibrant dishes that celebrate local produce, making every meal a refreshing experience.
Reservation
not needed
Hours vary

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
Local Highlights
Top Attractions
Activities
Dining
Entertainment
Dolphin Research Center
Dolphin Research Center
12 minutes' walk
Dolphin Research Center offers interactive experiences with dolphins. Enjoy educational programs and marine life exhibits.
Seven Mile Bridge
Seven Mile Bridge
16 minutes' walk
Famous for its stunning views, Seven Mile Bridge is perfect for a scenic stroll or a photo opportunity against the blue waters.
Curry Hammock State Park
Curry Hammock State Park
16 minutes' walk
This beautiful park features sandy beaches and nature trails, ideal for birdwatching, picnicking, and relaxing in nature.
Key Vaca
13 minutes' walk
Key Vaca offers beautiful waterfront views and is a great spot for kayaking and exploring local wildlife in a serene setting.
Snorkeling Tours
5-minute drive
Guided snorkeling tours provide an adrenaline rush while exploring vibrant marine life. Equipment rentals available.
Kayaking at Curry Hammock
16 minutes' walk
Curry Hammock State Park allows for peaceful kayaking through mangroves and clear waters, perfect for relaxation and wildlife spotting.
Keys Cable Park
20 minutes' walk
This exciting park features cable wakeboarding, making it great for thrill-seekers of all skill levels looking for adrenaline.
Grassy Key Outpost
5 minutes' walk
A casual eatery known for fresh seafood and local specialties, with a cozy atmosphere and outdoor seating.
Hideaway Cafe
Hideaway Cafe
8 minutes' walk
This waterfront cafe serves delicious breakfast and brunch, featuring locally sourced ingredients in a relaxed, friendly environment.
Sunset Bay Park
20 minutes' walk
A perfect spot for family picnics and sunset viewing, this park hosts community events and offers a serene beach atmosphere.
Local Bars
5-minute drive
Vibrant nightlife options featuring live music, karaoke nights, and craft cocktails cater to all ages and tastes.
Getting around town
City Centre
Marathon15 min  ·  6.2 mi
Airports
Key West International Airport (EYW)136 min  ·  56.0 mi
Bus
Bus stop20 min  ·  8.3 mi
Looking for early-bird discounts?
Get special discounted rates today!
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 time is check-in and check-out at Grassy Flats Resort & Beach Club?
Check-in is at 16:00 and check-out is at 11:00.
Is on-site parking available at Grassy Flats Resort & Beach Club?
Free private parking is available on-site without the need for a reservation.
What amenities are offered in the rooms at Grassy Flats Resort & Beach Club?
Rooms include air conditioning, a flat-screen TV with cable channels, seating areas, and private bathrooms with free toiletries.
What dining options are available at Grassy Flats Resort & Beach Club?
The on-site restaurant, Rhum House, offers a casual dining menu while the Barrel & Bale bar serves cocktails and beverages.
What recreational facilities does Grassy Flats Resort & Beach Club provide?
Guests can enjoy an outdoor heated pool, hot tub, and access to water sports facilities.
What nearby attractions are close to Grassy Flats Resort & Beach Club?
Nearby attractions include Dolphin Research Center (4 km), Florida Keys Aquarium Encounters (9 km), and Sombrero Beach (6 km).
How far is Grassy Flats Resort & Beach Club from the nearest airport?
The hotel is 89 km from Key West International Airport.
Does Grassy Flats Resort & Beach Club provide free Wi-Fi?
Yes, free Wi-Fi is available throughout the property.
What type of swimming pools are available at Grassy Flats Resort & Beach Club?
Guests have access to a saltwater pool that is open year-round and features beach chairs and umbrellas.

Next best alternative

Consider them for your next trip.
Super 8 By Wyndham Columbus WestSuper 8 By Wyndham Columbus West
Columbus, United States
7.6
68 USD/night
Quality Inn & Suites Joelton - NashvilleQuality Inn & Suites Joelton - Nashville
Nashville, United States
8.7
110 USD/night
The Lodges Of The Great Smoky MountainsThe Lodges Of The Great Smoky Mountains
Pigeon Forge, United States
8.8
262 USD/night
Towneplace Suites By Marriott IrontonTowneplace Suites By Marriott Ironton
Ironton, United States
9.2
154 USD/night
Intown Suites Extended Stay Nashville Tn - MadisonIntown Suites Extended Stay Nashville Tn - Madison
Goodlettsville, United States
5.0
61 USD/night
Econo Lodge MorristownEcono Lodge Morristown
Morristown, United States
5.0
79 USD/night
Quality Suites Jeffersonville - Louisville NorthQuality Suites Jeffersonville - Louisville North
Clarksville (Clark County), United States
5.0
85 USD/night
Upcountry Inn - RoomsUpcountry Inn - Rooms
Helen, United States
8.11 review
77 USD/night
Raesabu Guest HouseRaesabu Guest House
Brampton, Canada
7.1
40 USD/night
Budget Inn And Suites Siloam SpringsBudget Inn And Suites Siloam Springs
Siloam Springs, United States
5.8
49 USD/night
Hilton Vacation Club Mill Springs Lodge Pigeon ForgeHilton Vacation Club Mill Springs Lodge Pigeon Forge
Pigeon Forge, United States
9.7
123 USD/night
Hotel LaurenceHotel Laurence
Montreal, Canada
8.6
80 USD/night

Popular hotels all over the world

Find your perfect hotel stay today
7.8/10
Sri Lakshmi ResidencyHotel Sri Lakshmi Residency
Chennai, India
4 km from Pondy Bazaar, 5 km from Anna University
View hotel
8.2/10
Best Western Yuba City InnHotel Best Western Yuba City Inn
Yuba City, United States
4 km from Yuba Sutter Mall, Seasonal outdoor pool
View hotel
Check-in
24Jan2026Select date
Check-out
25Jan2026Select date
Rooms and Guests2 Guests, 1 Room
  • Overview
  • Rooms
  • Price calendar
  • Amenities & services
  • Location
Need more options?
Check Top hotels near Grassy Flats Resort & Beach Club
Rainbow Bend Resort Marathon Beach photo
Mobile-only price

Rainbow Bend Resort Marathon

7.1
Very good763 reviews
614m from property
USD 235USD 211
per night
Gulf View Waterfront Resort Marathon Exterior photo
Mobile-only price

Gulf View Waterfront Resort Marathon

7.9
Very good394 reviews
855m from property
USD 125USD 112
per night
Sun Outdoors Marathon Hotel Skyline photo
Mobile-only price

Sun Outdoors Marathon Hotel

7.2
Very good138 reviews
1401m from property
USD 159USD 143
per night
rungcheaphotels.me uses cookies that are strictly necessary for its functioning. We do not collect analytical and marketing cookies.
OK