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

Find Beach Hotels in Grassy Key, FL

Check availability on Grassy Key Beach Hotels

Our top choices for Grassy Key beach hotels

A beach with lounge chairs and umbrellas, palm trees, and a building with balconies.

1. Rainbow Bend Resort

Rainbow Bend Resort
2.5 star property
Marathon
8.2 out of 10, Very good, (1,000 reviews)
Rainbow Bend Resort
A tropical resort with a swimming pool, palm trees, and a view of the ocean.

2. Gulf View Waterfront Resort

Gulf View Waterfront Resort
2.5 star property
Marathon
8.4 out of 10, Very good, (645 reviews)
Gulf View Waterfront Resort
A beach with a wooden walkway leading to the water, palm trees, and a clear sky.

3. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
4.0 star property
Marathon
9.4 out of 10, Exceptional, (506 reviews)
  • cleanliness
    Escape to this oceanfront paradise with private beach access, water sports, and sun-soaked lounging spots by the sea.
Grassy Flats Resort & Beach Club
A bar area with a long counter, bar stools, and a view of the water.

4. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
3.0 star property
Marathon
9.2 out of 10, Wonderful, (1,242 reviews)
  • cleanliness
    Escape to seaside bliss with pristine white sand beaches just minutes away and complimentary water activities at this waterfront retreat.
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Three colorful drinks on a table with a thatched roof and outdoor seating.

5. Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
2.5 star property
Marathon
9.0 out of 10, Wonderful, (1,000 reviews)
Hampton Inn Marathon - Florida Keys
A covered outdoor area with a view of a pool and palm trees.

6. Kingsail Resort

Kingsail Resort
2.0 star property
Marathon
8.6 out of 10, Excellent, (1,142 reviews)
Kingsail Resort
Two bicycles parked on a sandy beach with the ocean in the background.

7. Bonefish Bay Motel

Bonefish Bay Motel
2.5 star property
Marathon
9.2 out of 10, Wonderful, (670 reviews)
  • cleanliness
    Soak up the sun at this waterfront escape, just minutes from the beach with a peaceful pool and complimentary kayaks.
Bonefish Bay Motel
A beach with palm trees, lounge chairs, and a picnic table.

8. Seascape Resort & Marina

Seascape Resort & Marina
3.0 star property
Marathon
9.4 out of 10, Exceptional, (650 reviews)
  • cleanliness
    Blissful days on your own private beach with sunset views, kayaking, and fishing at this serene waterfront oasis.
Seascape Resort & Marina
A marina with a dock, a boat, and a row of buildings with large windows.

9. Coconut Cay Resort & Marina

Coconut Cay Resort & Marina
3.0 star property
Marathon
8.6 out of 10, Excellent, (1,090 reviews)
  • cleanliness
    Seaside adventures at your doorstep with complimentary kayaking, biking, and a marina just minutes from Sombrero Beach.
Coconut Cay Resort & Marina
A beach with a palm tree, clear blue water, and a bridge in the distance.

10. Glunz Ocean Beach Hotel & Resort

Glunz Ocean Beach Hotel & Resort
3.0 star property
Key Colony Beach
9.2 out of 10, Wonderful, (1,003 reviews)
  • cleanliness
    Escape to pristine sands and azure waters from this private island retreat, with loungers, umbrellas, and ocean-view dining.
Glunz Ocean Beach Hotel & Resort
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
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Choose what matters most at beach hotels in Grassy Key

Pool
Breakfast included

Top Grassy Key Hotel Reviews

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

10/10 Excellent
"Love this resort."
Laura 4-night trip
Posted 5 hours ago
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

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