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

Find Beach 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 Beach Hotels

Tonight
Oct 20 - Oct 21
Tomorrow
Oct 21 - Oct 22
This weekend
Oct 23 - Oct 25
Next weekend
Oct 30 - Nov 1

Our top choices for Grassy Key beach hotels

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 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.

1. Rainbow Bend Resort

Rainbow Bend Resort
Marathon
NT$3,355
NT$5,233 total
includes taxes & fees
Oct 21 - Oct 22
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.
An aerial view of a resort with a swimming pool, palm trees, and a beach area.
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
NT$2,837
NT$3,192 total
includes taxes & fees
Oct 29 - Oct 30
Gulf View Waterfront Resort
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 pool area with palm trees and a view of the ocean.
A wooden deck with a white railing, a bench, and a table.

3. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
  • Escape to this oceanfront paradise with private beach access, water sports, and sun-soaked lounging spots by the sea.
NT$6,263
NT$8,606 total
includes taxes & fees
Nov 18 - Nov 19
Grassy Flats Resort & Beach Club
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 bar area with wicker chairs and a thatched roof, overlooking a body of water with boats.
A pool area with lounge chairs, a thatched-roof structure, and a view of the ocean.

4. Hampton Inn Marathon - Florida Keys

Hampton Inn Marathon - Florida Keys
Marathon
NT$4,224
NT$4,752 total
includes taxes & fees
Oct 27 - Oct 28
Hampton Inn Marathon - Florida Keys
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 balcony with a view of a body of water, a pool, and outdoor seating.
A balcony with a view of the ocean, a round table, and two chairs.

5. Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Marathon
  • Escape to seaside bliss with pristine white sand beaches just minutes away and complimentary water activities at this waterfront retreat.
NT$4,345
NT$4,888 total
includes taxes & fees
Oct 26 - Oct 27
Fairfield Inn & Suites by Marriott Marathon Florida Keys
A covered outdoor area with a view of a pool and 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.
A covered patio with a round table and chairs, large windows, and a view of a street and greenery.

6. Kingsail Resort

Kingsail Resort
Marathon
NT$2,506
NT$2,819 total
includes taxes & fees
Oct 27 - Oct 28
Kingsail Resort
Two bicycles parked on a sandy beach with the ocean in the background.
A covered outdoor seating area with tables and chairs, overlooking a body of water and a distant shoreline.
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.

7. Bonefish Bay Motel

Bonefish Bay Motel
Marathon
  • Soak up the sun at this waterfront escape, just minutes from the beach with a peaceful pool and complimentary kayaks.
NT$3,047
NT$3,428 total
includes taxes & fees
Oct 29 - Oct 30
Bonefish Bay Motel
A waterfront dock with pebbles, rocks, and a red chair.
A building with a blue roof and white walls, a gravel driveway, and a white picket fence.
A small boat house named "SEACOVE" with a dock extending into calm water, surrounded by pebbles and rocks.
A room with a large bed, a sofa, a desk, and a chair.

8. Floating Sea Cove Resort & Marina

Floating Sea Cove Resort & Marina
Marathon
NT$1,755
NT$2,485 total
includes taxes & fees
Nov 15 - Nov 16
Floating Sea Cove Resort & Marina
A building with a white exterior, purple doors, and a small patio area with chairs and a table.
A compact room with a kitchenette, a flat-screen TV, a wooden desk, a chair, and a wardrobe.
A hotel room with two beds, a desk, a chair, a TV, and a window with curtains.
A compact kitchen with wooden cabinets, a microwave, and a refrigerator. There is a dining area with wicker chairs and a small table.

9. Siesta Motel

Siesta Motel
Marathon
NT$2,624
NT$2,953 total
includes taxes & fees
Oct 29 - Oct 30
Siesta Motel
View all properties

Choose what matters most at beach hotels in Grassy Key

Pool
Breakfast included
4 stars
5 stars
All-inclusive

Top Grassy Key Hotel Reviews

Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

10/10 Excellent
"Villa was clean. Staff was very polite, knowledgeable. There was a problem with the toilet and it was taken care of. A shower outside of the pool area would be very helpful in washing off sandy feet, also a door mat. Silverware was very cheap, could be better. It's the small things that could make it great."
Cynthia 2-night trip
Posted 2 hours ago
Tranquility Bay Beachfront Hotel and Resort
Kingsail Resort

Kingsail Resort

10/10 Excellent
"Buena ubicación, buen trato del personal, súper limpio. La unidad tiene cocina que es súper práctica. Lo único que no nos gustó fue que al estar hospedados en plata Baja escuchábamos todos los movimientos de los vecinos del piso superior"
Cristian 2-night trip
Posted 3 hours ago
Kingsail Resort
Lime Tree Bay Resort

Lime Tree Bay Resort

10/10 Excellent
"We always stay at Lime Tree Bay. If you find yourself driving down U.S. 1, be sure to stop and enjoy the Exceptional Service, Beauty, and one of the Best stays we have loved many times, in Layton, Lime Tree Bay and the Keys await you!"
Gabriel 1-night trip
Posted 4 hours ago
Lime Tree Bay Resort
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

10/10 Excellent
"The lunchtime waitress in the bar/restaurant was incredibly lively & full of drive. She really made our day. Room good size, clean & adequate."
Rene 1-night trip
Posted 11 hours ago
Fairfield Inn & Suites by Marriott Marathon Florida Keys
Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

10/10 Excellent
"The room was clean and smelled very good .The air was on when we came in ,so it was a good temperature as well .Staff was friendly and attentive ."
Gretchen 1-night trip
Posted 11 hours ago
Captain Pips Marina & Hideaway
Coconut Cay Resort & Marina

Coconut Cay Resort & Marina

10/10 Excellent
"muy recomendable muy buen servicio centrico"
yurizan 1-night trip
Posted 13 hours ago
Coconut Cay Resort & Marina
Hawks Cay Resort

Hawks Cay Resort

8/10 Good
"Our villa was right next to the workers building. Not an ideal spot for a “premium” villa. Also when they were cutting lawn and blowing leaves they were blowing everything all over our rental cars. Parking was tough because I think employees were also parking in guest spots. Again I think this was due to the location of our villa. We were never told what to do with our garbage or if housekeeping would come clean. Found out later you need to specifically request it 24 hrs in advance. It was off season so nice and quite not too many people so they definitely could have put us elsewhere. Other than that we really enjoyed ourselves and plan to go back next time we would just be specific on check in about the location they put us in."
Tamara 7-night trip
Posted 1 day ago
Hawks Cay Resort

Explore a world of travel with Expedia