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

Find Family Hotels in Grassy Key, FL

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
    Sign in

  • Be picky

    Search almost a million properties worldwide

Check availability on Grassy Key Family Hotels

Tonight
Oct 3 - Oct 4
Tomorrow
Oct 4 - Oct 5
Next weekend
Oct 9 - Oct 11
In two weeks
Oct 16 - Oct 18

Our top choices for Grassy Key family-friendly hotels

A wooden deck with a pool and chairs overlooking a beach with palm trees.
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.
A wooden deck with a white railing, a bench, and a table.

1. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
NT$5,858
NT$8,120 total
includes taxes & fees
Nov 1 - Nov 2
Grassy Flats Resort & Beach Club
A table with breakfast items and a view of the beach.
A pathway leading to a beach with pink buildings and palm trees.
A beach with lounge chairs and umbrellas, palm trees, and a building with balconies.
A wooden deck with two chairs and a table, overlooking a beach with palm trees and the ocean.

2. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
NT$3,299
NT$5,145 total
includes taxes & fees
Oct 5 - Oct 6
Rainbow Bend Resort
A tropical resort with a swimming pool, palm trees, and a view of the ocean.
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.
A beach view with palm trees, a hammock, and a chair by the water.

3. Gulf View Waterfront Resort

Gulf View Waterfront Resort
Marathon
NT$2,990
NT$3,363 total
includes taxes & fees
Oct 5 - Oct 6
Gulf View Waterfront Resort
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.
A waterfront property with a large building, a smaller structure with a thatched roof, and several boats docked.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
NT$4,273
NT$4,807 total
includes taxes & fees
Oct 25 - Oct 26
Fairfield Inn & Suites by Marriott Marathon Florida Keys
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.
A pathway leading to a pool area with palm trees and a sunset view.
An aerial view of a coastal resort with multiple white buildings, a clear turquoise sea, and lush greenery.

5. 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.
NT$6,426
NT$9,679 total
includes taxes & fees
Oct 11 - Oct 12
Hawks Cay Resort
An aerial view of a resort with a central pool, multiple buildings, and a beach area with sun loungers.
A beach scene with two white chairs, a hammock, and palm trees.
A beach with white chairs and kayaks, palm trees, and a clear view of the ocean.
A bar area with wooden chairs, a bar counter, and a variety of bottles and glasses.

6. Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa
Marathon
  • Discover a family beach paradise with five pools, water sports, and complimentary games for kids of all ages at this resort oasis.
NT$6,481
NT$9,194 total
includes taxes & fees
Oct 5 - Oct 6
Isla Bella Beach Resort & Spa
A playground with slides and climbing structures.
A poolside area with lounge chairs and umbrellas, overlooking a clear blue sea.
A spacious living area with a view of the ocean, a balcony with a pool, and a staircase leading to another level.
A beach with a palm tree, clear blue water, and a bridge in the distance.

7. Glunz Ocean Beach Hotel & Resort

Glunz Ocean Beach Hotel & Resort
Key Colony Beach
  • Family-friendly private beach paradise offers 2 pools, bicycles, kayaking, and exclusive beachfront fun for all ages.
NT$5,385
NT$7,428 total
includes taxes & fees
Oct 5 - Oct 6
Glunz Ocean Beach Hotel & Resort
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.

8. Bonefish Bay Motel

Bonefish Bay Motel
Marathon
NT$3,329
NT$3,745 total
includes taxes & fees
Oct 18 - Oct 19
Bonefish Bay Motel
A family playing chess outdoors with a netted area in the foreground.
Two hammocks on a sandy beach with a clear blue sky and turquoise water.
A bar area with a view of the ocean, bar stools, umbrellas, and a variety of bottles.
A clear blue pool with white lounge chairs and palm trees, overlooking a calm sea.

9. Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys

Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
Marathon
  • Family beach resort brings endless fun for kids with poolside play, beach adventures, and complimentary bike rides.
NT$4,563
NT$6,248 total
includes taxes & fees
Oct 11 - Oct 12
Courtyard by Marriott Faro Blanco Resort, Marathon Florida Keys
A marina with boats docked, a lighthouse, and a resort with outdoor seating.
A bar area with a long counter, multiple bar stools, and a view of the marina with boats and palm trees.
An outdoor dining area with round tables, chairs, and string lights against a backdrop of palm trees and boats.
An outdoor dining area with tables and chairs, a pool, and a view of the sea and boats.

10. Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Marathon
  • Create a fun-filled retreat where kids and adults thrive with oceanfront pools and bicycle adventures through tropical gardens.
NT$5,199
NT$7,048 total
includes taxes & fees
Oct 11 - Oct 12
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
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

Kingsail Resort

Kingsail Resort

10/10 Excellent
"We loved the wandering chicken and the staff was super helpful"
Shelby 1-night trip
Posted less than an hour ago
Kingsail Resort
Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

10/10 Excellent
"Wonderful!"
Karen 2-night trip
Posted 5 hours ago
Tranquility Bay Beachfront Hotel and Resort
Lime Tree Bay Resort

Lime Tree Bay Resort

10/10 Excellent
"Very clean and well maintained property. Helpful and friendly staff. Great amenities and a great location."
Cody 5-night trip
Posted 7 hours ago
Lime Tree Bay Resort
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

10/10 Excellent
"I loved the property. Recommend to others."
Vivian 1-night trip
Posted 1 day ago
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

8/10 Good
"Room was clean and nice. Didn’t have alot of room in the bathroom, small sink no where to put things even in the shower. But overall great stay."
Jessica 3-night trip
Posted 3 days ago
Captain Pips Marina & Hideaway

Explore a world of travel with Expedia