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

Find Dog-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 Pet-Friendly Hotels

Tonight
22 Sept - 23 Sept
Tomorrow
23 Sept - 24 Sept
This weekend
25 Sept - 27 Sept
Next weekend
2 Oct - 4 Oct

Our top choices for Grassy Key pet-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.
A pool area with palm trees and a view of the ocean.
A bar area with stools, a counter, and hanging lanterns.

1. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
United States
Tiffany
£184
includes taxes & fees
22 Oct - 23 Oct
Grassy Flats Resort & Beach Club
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.
An aerial view of a resort with a swimming pool, palm trees, and a beach area.
A bright kitchen with white cabinets and a microwave, a glass table with white chairs, and a view of palm trees and the ocean through large windows.

2. Gulf View Waterfront Resort

Gulf View Waterfront Resort
Marathon
United States
Sonja L
£79
includes taxes & fees
1 Oct - 2 Oct
Gulf View Waterfront Resort
A wooden deck with two chairs and a table, overlooking a beach with palm trees and the ocean.
A beach with lounge chairs and umbrellas, palm trees, and a building with balconies.
A table with breakfast items and a view of the beach.
A two-story beachfront house with a balcony, surrounded by palm trees and a sandy beach.

3. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
United Kingdom
Adam
£121
includes taxes & fees
23 Sept - 24 Sept
Rainbow Bend 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 waterfront property with a large building, a smaller structure with a thatched roof, and several boats docked.
A balcony with a view of a body of water, a pool, and outdoor seating.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
United States
JOSE
£113
includes taxes & fees
29 Sept - 30 Sept
Fairfield Inn & Suites by Marriott Marathon Florida Keys
A marina with a dock, a boat, and a row of buildings with large windows.
A bedroom with a bed, a dresser, a large window, and a painting of a sunset over the ocean.
A wooden deck with a covered area, green Adirondack chairs, and a view of palm trees and a water body.
A two-story beachfront hotel with a wooden deck, palm trees, and a clear sky.

5. Coconut Cay Resort & Marina

Coconut Cay Resort & Marina
Marathon
United States
Oscar
£76
includes taxes & fees
23 Sept - 24 Sept
Coconut Cay Resort & Marina
A beachfront property with a white balcony, palm trees, and a sandy beach.
A coastal hotel with a pool, parked cars, and a view of the ocean.
A pool area with lounge chairs, a wooden deck, and a view of the ocean.
A beach with clear blue water, a palm tree, and rocky outcrops.

6. Conch Key Fishing Lodge and Marina

Conch Key Fishing Lodge and Marina
Marathon
United States
Eduardo
£68
includes taxes & fees
23 Sept - 24 Sept
Conch Key Fishing Lodge and Marina
A wooden dock leading to a row of boats, with a thatched-roof building and palm trees in the background.
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.
An aerial view of a resort with a swimming pool, lounge area, and palm trees.

7. Bonefish Bay Motel

Bonefish Bay Motel
Marathon
United States
William
£94
includes taxes & fees
23 Sept - 24 Sept
Bonefish Bay Motel
Three colorful drinks on a table with a thatched roof and outdoor seating.
A modern kitchen with a central island, various appliances, and hanging pendant lights.
A pool area with lounge chairs, a thatched-roof structure, and a view of the ocean.
A bar area with wicker chairs and a thatched roof, overlooking a body of water with boats.

8. Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
Marathon
United States
Annie
£110
includes taxes & fees
29 Sept - 30 Sept
Hampton Inn Marathon - Florida Keys
A covered outdoor area with a view of a pool and palm trees.
A swimming pool with yellow lounge chairs, palm trees, and a white building in the background.
A reception desk with a marble countertop, a Toshiba laptop, a vase with white flowers, and a sign indicating an office.
A covered patio with a round table and chairs, large windows, and a view of a street and greenery.

9. Kingsail Resort

Kingsail Resort
Marathon
United States
Jennifer
£64
includes taxes & fees
28 Sept - 29 Sept
Kingsail Resort
Three Adirondack chairs on a sandy beach with a view of the ocean and a clear sky.
A clear view of a swimming pool with lounge chairs and umbrellas, surrounded by palm trees and a clear sky.
A beach with lounge chairs, palm trees, and a string of lights.
An aerial view of a marina with multiple boats docked, surrounded by a sandy beach and palm trees.

10. Banana Bay Resort & Marina

Banana Bay Resort & Marina
Marathon
United States
michael
£115
includes taxes & fees
23 Sept - 24 Sept
Banana Bay Resort & Marina
View all properties

Top Grassy Key Hotel Reviews

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

8/10 Good
"Ok"
Fernando 2-night trip
Posted 12 hours ago
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

10/10 Excellent
"We had a good time"
melinda 5-night trip
Posted 1 day ago
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Explore a world of travel with Expedia