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
Sep 13 - Sep 14
Tomorrow
Sep 14 - Sep 15
Next weekend
Sep 18 - Sep 20
In two weeks
Sep 25 - Sep 27

Our top choices for Grassy Key family-friendly hotels

A wooden deck with a pool and chairs overlooking a beach with palm trees.
An outdoor dining area with thatched roof, wooden tables, and bar stools, overlooking the ocean.
A beach with a wooden walkway leading to the water, palm trees, and a clear sky.
A pool area with palm trees and a view of the ocean.

1. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
NT$5,540
NT$7,751 total
includes taxes & fees
Oct 12 - Oct 13
Grassy Flats Resort & Beach Club
A table with breakfast items and a view of the beach.
A wooden deck with two chairs and a table, overlooking a beach with palm trees and the ocean.
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.

2. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
NT$3,277
NT$5,110 total
includes taxes & fees
Sep 14 - Sep 15
Rainbow Bend 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.

3. 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$5,870
NT$9,036 total
includes taxes & fees
Sep 20 - Sep 21
Hawks Cay Resort
A bar area with a long counter, bar stools, and a view of the water.
An outdoor dining area with tables and chairs, overlooking a body of water.
A waterfront property with a large building, a smaller structure with a thatched roof, and several boats docked.
A balcony with a view of the ocean, a round table, and two chairs.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
NT$4,243
NT$4,774 total
includes taxes & fees
Sep 27 - Sep 28
Fairfield Inn & Suites by Marriott Marathon Florida Keys
A beachfront property with a white balcony, palm trees, and a sandy beach.
A beach with clear blue water, a palm tree, and rocky outcrops.
A pool area with lounge chairs, a wooden deck, and a view of the ocean.
A hotel room with a bed, a TV, a balcony with a view of the sea, and a table with chairs.

5. Conch Key Fishing Lodge and Marina

Conch Key Fishing Lodge and Marina
Marathon
  • Family-friendly fishing lodge with a private beach and outdoor pool provides a perfect coastal escape for all ages.
NT$3,123
NT$3,513 total
includes taxes & fees
Sep 14 - Sep 15
Conch Key Fishing Lodge and Marina
A playground with slides and climbing structures.
A poolside area with lounge chairs and umbrellas, overlooking a clear blue sea.
A covered outdoor seating area with a view of the ocean, a small table, and two chairs with cushions.
A spacious living area with a view of the ocean, a balcony with a pool, and a staircase leading to another level.

6. 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$5,348
NT$7,377 total
includes taxes & fees
Sep 14 - Sep 15
Glunz Ocean Beach Hotel & 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 bar area with wooden chairs, a bar counter, and a variety of bottles and glasses.

7. 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$5,667
NT$8,240 total
includes taxes & fees
Sep 15 - Sep 16
Isla Bella Beach Resort & Spa
A street view with colorful houses, a clear sky, and a paved road.
A beach with a wooden pier, palm trees, and a clear blue sky.
An aerial view of a coastal area with a marina, several boats, and a variety of buildings including a large resort with a pool and landscaped areas.
A waterfront dock with boats and a sunset.

8. Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway
Marathon
  • Family paradise offers outdoor pool, marina access, free bikes, and endless water activities at coastal haven.
NT$2,932
NT$4,188 total
includes taxes & fees
Sep 14 - Sep 15
Captain Pips Marina & Hideaway
A neatly made bed with a grey and white duvet, a wooden headboard, and a bedside table with a lamp and remote control.
A kitchen with wooden cabinets, a stainless steel refrigerator, a granite countertop, a sink, a microwave, a stove, and a clock.
A compact living space with a kitchenette, dining area, and seating area.
A spacious living room with a wooden floor, a sofa, a TV, a cabinet, and a sliding glass door leading to a balcony.

9. Knight's Key Suites

Knight's Key Suites
Marathon
NT$2,179
NT$3,131 total
includes taxes & fees
Sep 14 - Sep 15
Knight's Key Suites
A marina with boats docked, a lighthouse, and a resort with outdoor seating.
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.
A room with two sofas, a round coffee table, and a small side table with a vase.

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$4,645
NT$6,416 total
includes taxes & fees
Sep 20 - Sep 21
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

Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

10/10 Excellent
"It’s was an amazing experience. Extremely relaxing and the staff was super friendly. Will definitely be back 😎"
Christina 4-night trip
Posted 7 hours ago
Captain Pips Marina & Hideaway
Lime Tree Bay Resort

Lime Tree Bay Resort

10/10 Excellent
"Excellent location with great views, great amenities, great AC, shower door didn’t close all the way and refrigerator door had trouble staying closed, all in all A++++ resort"
Doug 6-night trip
Posted 8 hours ago
Lime Tree Bay Resort
Hawks Cay Resort

Hawks Cay Resort

10/10 Excellent
"Beautiful"
Lesther 1-night trip
Posted 11 hours ago
Hawks Cay Resort
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

10/10 Excellent
"This was an absolute treasure to stay at. Clean, friendly, great food and drink, even beautiful grounds and landscaping. I highly recommend this place - I know if I go back to Key West I will 100% stay here. We thoroughly enjoyed ourselves."
Jim 4-night trip
Posted 2 days ago
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

10/10 Excellent
"Beautiful view. Enjoyed it for a week❤️❤️❤️ would definitely visit again."
Daniel 4-night trip
Posted 2 days ago
Tranquility Bay Beachfront Hotel and Resort
Skipjack Resort & Marina

Skipjack Resort & Marina

10/10 Excellent
"Great spot"
Justin 2-night trip
Posted 3 weeks ago
Skipjack Resort & Marina

Explore a world of travel with Expedia