A dolphin swimming near a wooden dock and a tree branch in the water.

Find Family-Friendly Hotels in Grassy Key, FL

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

    Save instantly and earn perks with One Key
    Learn about One Key

  • Be picky

    Search almost a million properties worldwide

Check availability on Grassy Key Family-Friendly Hotels

Tonight
8 Oct - 9 Oct
Tomorrow
9 Oct - 10 Oct
This weekend
9 Oct - 11 Oct
Next weekend
16 Oct - 18 Oct

Our top choices for Grassy Key family-friendly hotels

A table with breakfast items and a view of the beach.
A pathway leading to a beach with pink buildings and palm trees.
A hotel corridor with a view of the beach, palm trees, and outdoor seating.
A wooden deck with two chairs and a table, overlooking a beach with palm trees and the ocean.

1. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
£122
includes taxes & fees
15 Oct - 16 Oct
Rainbow Bend Resort
A tropical resort with a swimming pool, palm trees, and a view of the ocean.
A beach view with palm trees, a hammock, and a chair by the water.
A bedroom with a bed, nightstands, a TV, a ceiling fan, and a view of the ocean.
A kitchen with white cabinets, a microwave, and a dining area with a glass table and white chairs.

2. Gulf View Waterfront Resort

Gulf View Waterfront Resort
Marathon
£77
includes taxes & fees
21 Oct - 22 Oct
Gulf View Waterfront Resort
A wooden deck with a pool and chairs overlooking a beach with palm trees.
A pool area with palm trees and a view of the ocean.
A beach with a wooden walkway leading to the water, palm trees, and a clear sky.
An outdoor dining area with thatched roof, wooden tables, and bar stools, overlooking the ocean.

3. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
£193
includes taxes & fees
8 Nov - 9 Nov
Grassy Flats Resort & Beach Club
A bar area with a long counter, bar stools, and a view of the water.
A balcony with a view of the ocean, a round table, and two chairs.
A balcony with a view of a body of water, a pool, and outdoor seating.
An outdoor dining area with tables and chairs, overlooking a body of water.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
£114
includes taxes & fees
14 Oct - 15 Oct
Fairfield Inn & Suites by Marriott Marathon Florida Keys
A swimming pool with lounge chairs and umbrellas, surrounded by palm trees and a thatched-roof structure.
A modern kitchen with a central island, various appliances, and hanging pendant lights.
Three colorful drinks on a table with a thatched roof and outdoor seating.
A bar area with wicker chairs and a thatched roof, overlooking a body of water with boats.

5. Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
Marathon
£111
includes taxes & fees
14 Oct - 15 Oct
Hampton Inn Marathon - Florida Keys
A wooden dock leading to a row of boats, with a thatched-roof building and palm trees in the background.
An aerial view of a resort with a swimming pool, lounge area, and palm trees.
A bedroom with a bed, two bedside lamps, a glass table, and a view of a balcony with palm trees.
A covered outdoor seating area with tables and chairs, overlooking a body of water and a distant shoreline.

6. Bonefish Bay Motel

Bonefish Bay Motel
Marathon
£80
includes taxes & fees
18 Oct - 19 Oct
Bonefish Bay Motel
Terrace/patio
A spacious living area with a large island, wooden furniture, and a ceiling fan.
A resort with a swimming pool, lounge chairs, and palm trees.
A bedroom with a large bed, a ceiling fan, a TV on the wall, and a view of the beach through a window.

7. Lime Tree Bay Resort

Lime Tree Bay Resort
Long Key
£139
includes taxes & fees
13 Oct - 14 Oct
Lime Tree Bay Resort
A covered outdoor area with a view of a pool and palm trees.
A covered outdoor seating area with a round table and two chairs, overlooking a garden with palm trees.
A reception desk with a marble countertop, a Toshiba laptop, a vase with white flowers, and a sign indicating an office.
A swimming pool with yellow lounge chairs, palm trees, and a white building in the background.

8. Kingsail Resort

Kingsail Resort
Marathon
£66
includes taxes & fees
27 Oct - 28 Oct
Kingsail Resort
A water fountain with a pirate ship design, surrounded by a pool and lounge chairs.
A covered outdoor area with a wooden deck, white railings, and a view of the ocean.
An aerial view of a coastal resort with multiple white buildings, a clear turquoise sea, and lush greenery.
A pathway leading to a pool area with palm trees and a sunset view.

9. Hawks Cay Resort

Hawks Cay Resort
Marathon
  • Families splash into island fun at this beachside resort with five outdoor pools and a children's club.
£229
includes taxes & fees
14 Oct - 15 Oct
Hawks Cay Resort
A marina with a dock, a boat, and a row of buildings with large windows.
A two-story beachfront hotel with a wooden deck, palm trees, and a clear sky.
A bedroom with a bed, a dresser, a large window, and a painting of a sunset over the ocean.
A pool area with lounge chairs and umbrellas, surrounded by palm trees and a white fence.

10. Coconut Cay Resort & Marina

Coconut Cay Resort & Marina
Marathon
  • Family adventure awaits at this waterfront retreat with fishing, cycling, and kayaking just minutes from Sombrero Beach.
£74
includes taxes & fees
28 Oct - 29 Oct
Coconut Cay Resort & Marina
View all properties

Choose what matters most at family-friendly hotels in Grassy Key

Breakfast included
Pool
All-inclusive
4 stars
5 stars

Top Grassy Key Hotel Reviews

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

10/10 Excellent
"Property was very clean. Staff was great! Very good choice!"
James 1-night trip
Posted 3 hours ago
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

8/10 Good
"Sparkeys was shut while we were here, don’t forget parking $20 per night plus tax massive car park so can’t see the justification for extra charge"
Phil 5-night trip
Posted 17 hours ago
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

10/10 Excellent
"My husband and I started coming here about a year and a half ago. We absolutely love it here. You are in the middle part of the keys so you can get to upper and lower keys and still have plenty of time to explore for the day. We have stayed at a couple other places however they do not compare to Captain Pips. It is very quiet there in the evenings with amazing views on the water. The maid Kira is so welcoming. Always has a smile on her face. Anything you need from towels to clean sheets she is happy to help! Staff is friendly, property is well maintained. I won’t stay anywhere else when going there. Prices are great too!!Great place to stay."
Sally 4-night trip
Posted 1 day ago
Captain Pips Marina & Hideaway
Kingsail Resort

Kingsail Resort

10/10 Excellent
"Quite and Relaxing place."
IRAN G 1-night trip
Posted 2 days ago
Kingsail Resort

Explore a world of travel with Expedia