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

Find 4 Star Hotels in Grassy Key, FL from ￥34,812

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Check availability on Grassy Key 4 Star Hotels

Tonight
Sep 30 - Oct 1
Tomorrow
Oct 1 - Oct 2
This weekend
Oct 2 - Oct 4
Next weekend
Oct 9 - Oct 11

Our top choices for Grassy Key 4-star hotels

A pool area with lounge chairs and umbrellas, surrounded by palm trees.
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.
A spacious lobby with high ceilings, large windows, and a central coffee table surrounded by sofas and chairs.

1. Hawks Cay Resort

Hawks Cay Resort
Marathon
United States
Katherine
￥29,191
￥44,939 total
includes taxes & fees
Oct 7 - Oct 8
Hawks Cay Resort
A swimming pool surrounded by palm trees and lounge chairs.
An aerial view of a resort with a central swimming pool, surrounded by lush greenery and palm trees, with a view of the ocean.
A beach scene with a wooden deck, palm trees, and a gazebo-like structure.
A spacious living room with a wooden coffee table, a striped sofa, and a television on a wooden cabinet.

2. Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort
Marathon
United Kingdom
Stuart
￥28,838
￥42,505 total
includes taxes & fees
Oct 20 - Oct 21
Tranquility Bay Beachfront Hotel and Resort
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.
A spacious lobby with a central round table, surrounded by wicker chairs, large potted plants, and decorative lanterns.
An outdoor dining area with tables and chairs, a pool, and a view of the sea and boats.

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

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
Marathon
United States
Rick
￥25,680
￥34,812 total
includes taxes & fees
Oct 1 - Oct 2
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
A wooden deck with a pool and chairs overlooking a beach with palm trees.
A bar area with stools, a counter, and hanging lanterns.
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.

4. Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club
Marathon
United States
Tiffany
￥31,704
￥43,221 total
includes taxes & fees
Oct 29 - Oct 30
Grassy Flats Resort & Beach Club
A resort pool with palm trees and lounge chairs, surrounded by a beachfront.
A modern kitchen with white cabinetry, a stainless steel oven, and a large island with a bowl of fruit.
An aerial view of a resort island with a large building, a swimming pool, and a boat docked nearby.
A modern living room with a sofa, chairs, a dining table, a TV, and a view of the ocean.

5. Villas At Hawks Cay Resort

Villas At Hawks Cay Resort
Marathon
United States
Gabriela
￥59,643
￥76,838 total
includes taxes & fees
Oct 1 - Oct 2
Villas At Hawks Cay Resort
A large hotel with a pool, multiple balconies, and palm trees.
A large, two-story hotel with a swimming pool in front.
A modern living room with a beige sectional sofa, large windows with wooden blinds, and a view of a marina and beach.
A beachside wedding setup with wicker chairs and a white canopy, palm trees, and a sunset view.

6. Marlin Bay Resort & Marina

Marlin Bay Resort & Marina
Marathon
United States
Chardell
Marlin Bay Resort & Marina
A covered outdoor area with a wooden deck, white railings, and a view of the ocean.
A spacious dining area with a long table, wicker chairs, and hanging wicker lamps.
A resort with multiple buildings, a large central pool, and a view of the ocean.
A poolside area with lounge chairs and palm trees.

7. Waterfront Luxury Villa

Waterfront Luxury Villa
Marathon Shores
Waterfront Luxury Villa
A living room with a sofa, a glass coffee table, a television on a cabinet, and a sliding glass door leading to an outdoor area.
A kitchen with granite countertops, a stainless steel sink, a coffee maker, and a ceiling fan.
A modern kitchen with white cabinets, stainless steel appliances, and a granite countertop.
A living room with a sofa, armchair, and coffee table, a dining area with a table and chairs, and a kitchen in the background.

8. Oceanfront Duck Key Villa: 2 Marinas Steps Away!

Oceanfront Duck Key Villa: 2 Marinas Steps Away!
Marathon
Oceanfront Duck Key Villa: 2 Marinas Steps Away!
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Explore similar 5-star hotels

Many 5-star hotels have the same amenities as 4-star hotels. See all 5-star hotels in Grassy Key.
Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

1 Knights Key Boulevard Marathon FL
￥27,626
￥40,336 total
Oct 1 - Oct 2
includes taxes & fees
9.2/10 Wonderful! (1,280 reviews)
Isla Bella Beach Resort & Spa
Sea Glass Cove

Sea Glass Cove

59720 Overseas Hwy Marathon FL
Get ratesSea Glass Cove
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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.

Learn more about Grassy Key

Experience the seaside area of Grassy Key—beaches, a scenic waterfront, and sights from Curry Hammock State Park to Grassy Key Marina.

See all hotels in Grassy Key
A building with a blue awning labeled "Dolphin Research Center" and a dolphin logo.

Top Grassy Key Hotel Reviews

Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

10/10 Excellent
"Great location and nice pool and beach! Daily tower replacement is also prompt and nice."
Xiaowei 4-night trip
Posted 22 hours ago
Tranquility Bay Beachfront Hotel and Resort

Frequently asked questions

What are the best 4-star hotels in Grassy Key?
Make amazing memories in Grassy Key at Hawks Cay Resort. Highly recommended by Expedia customers, this 4-star hotel includes lots of amenities for a relaxing and comfortable stay.
How much does it cost to stay in a 4-star hotel in Grassy Key?
With Expedia's handy search filters, scoring a terrific deal on a 4-star hotel in Grassy Key just got simpler. Start by entering your chosen arrival date and length of your escape. Then list the results by price and choose a property that best suits your style and budget.
  • Search for the lowest price from ￥40,336
What's the difference between 5-star and 4-star hotels in Grassy Key?
If you decide to book a stay at a 4-star hotel in Grassy Key, you'll typically find lots of conveniences to keep you comfortable, such as a restaurant, gym and pool. You can look forward to top-quality service and upscale surroundings. Choose a 5-star hotel and you'll get a few more bells and whistles — think on-site spas, 24-hour front desk and nightly turndown services. You'll most likely get additional amenities and premium services at a 5-star retreat, though both are terrific options for luxury guests.

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