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

5 Star Hotels in Grassy Key, Marathon

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Check availability on Grassy Key 5 Star Hotels

Tonight
29 Aug - 30 Aug
Tomorrow
30 Aug - 31 Aug
Next weekend
4 Sept - 6 Sept
In two weeks
11 Sept - 13 Sept

Our top choices for Grassy Key 5-star hotels

An aerial view of a resort with a central pool, multiple buildings, and a beach area with sun loungers.
A beach with white chairs and kayaks, palm trees, and a clear view of the ocean.
An aerial view of a resort with a large building, a beach, and a pier in the background.
A beach scene with two white chairs, a hammock, and palm trees.

1. Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa
Marathon
United States
Christopher
€235
includes taxes & fees
31 Aug - 1 Sept
Isla Bella Beach Resort & Spa
A resort pool with a view of the sea, surrounded by palm trees and lounge chairs.
A wooden deck with a spiral staircase leading to an upper level.
A modern white building with a garage, surrounded by palm trees and a clear blue sky.
A modern outdoor living space with a white pergola, grey sofas, a coffee table, and a patterned rug.

2. Sea Glass Cove

Sea Glass Cove
Marathon
Sea Glass Cove
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Explore similar 4-star hotels

Many 4-star hotels have the same amenities as 5-star hotels. See all 4-star hotels in Grassy Key.
Hawks Cay Resort

Hawks Cay Resort

61 Hawks Cay Blvd Marathon FL
€245
20 Sept - 21 Sept
includes taxes & fees
Hawks Cay Resort
Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

2600 Overseas Hwy Marathon FL
€240
21 Sept - 22 Sept
includes taxes & fees
Tranquility Bay Beachfront Hotel and Resort
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

Faro Blanco Resort Marathon Florida Keys, Curio by Hilton

1996 Overseas Highway Marathon FL
€174
17 Sept - 18 Sept
includes taxes & fees
Faro Blanco Resort Marathon Florida Keys, Curio by Hilton
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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

Discover the seaside area of Grassy Key—beaches, a marina and sights from Curry Hammock State Park to Keys Cable Park.

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

Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

10/10 Excellent
"Great times at this place. Super clean and restaurants inside it’s very convenient. We don’t even left the property. Amazing ⭐️⭐️⭐️⭐️⭐️"
Paulla 1-night trip
Posted 1 day ago
Isla Bella Beach Resort & Spa

Frequently asked questions

How much does it cost to stay in a 5-star hotel in Grassy Key?
The amount you pay for a 5-star hotel in Grassy Key can vary depending on the time of year you travel and how long you plan to stay, among several factors. Take advantage of our price per night filter and other search tools to find the best deal on a luxurious stay.
  • Search for the lowest price per night from €174
What makes a hotel 5 stars in Grassy Key?
From high-end restaurants and all-day gyms to pools and the finest bedding, the 5-star experience in Grassy Key is all about luxury and relaxation. But it requires more than just top-notch perks to earn a 5-star rating. Hotels also have to provide superior guest services like in-room massages, dry cleaning and laundry and 24/7 room service.
Are there any 5-star all-inclusive resorts in Grassy Key?
Use Expedia's filters to find an upmarket retreat in Grassy Key where most of what you need is included in the price. From there, refine your results for hotels that have a rating of 5 stars and are deemed "All inclusive." The first thing on the itinerary at these stays? Relaxation and indulgence.

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