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Hotels in Grassy Key

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Choose from 2329 Grassy Key Hotel Deals

Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

2.5 out of 5
58182 Overseas Hwy Marathon FL
  • 14 min walk from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and 2 outdoor pools. Our guests praise the helpful staff and the property condition in our reviews. ...
9.4/10 Exceptional! (344 reviews)
The pool is a garden paradise. The palm deck rooftop has amazing views. The staff all say the owner Matt is amazing and all the staff were overly gracious. Dinner was also amazing with a great bartender who asked us how things were. Water sports were an added bonus

Reviewed on Nov 21, 2025

Grassy Flats Resort & Beach Club
Rainbow Bend Resort

Rainbow Bend Resort

2.5 out of 5
57784 Overseas Hwy Marathon FL
  • 22 min walk from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy a private beach, daily housekeeping, and a garden. Our guests praise the breakfast and the helpful staff in ...
8/10 Very Good! (769 reviews)
Loved the beach area and view. Good breakfasts, too.

Reviewed on Nov 19, 2025

Rainbow Bend Resort
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
  • 4 min walk from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and daily housekeeping. Our guests praise the helpful staff and the clean rooms in our reviews. ...
8.4/10 Very Good! (517 reviews)
Great property to stay!

Reviewed on Nov 18, 2025

Gulf View Waterfront Resort
Isla Bella Beach Resort & Spa

Isla Bella Beach Resort & Spa

5 out of 5
1 Knights Key Boulevard Marathon FL
  • 29 min drive from Dolphin Research Center
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
9/10 Wonderful! (1,061 reviews)
Beautiful property, stunning vistas, clean, spacious rooms, friendly staff.

Reviewed on Nov 23, 2025

Isla Bella Beach Resort & Spa
Lime Tree Bay Resort

Lime Tree Bay Resort

3.5 out of 5
68500 Overseas Hwy Long Key FL
  • 23 min drive from Dolphin Research Center
Book a stay at this beach resort in Long Key. Enjoy free WiFi, free parking, and 3 outdoor pools. Our guests praise the pool and the helpful staff in our reviews. ...
9.2/10 Wonderful! (1,109 reviews)
The ocean is right out your front door. Beautiful place. Local is great. Staff is nice. Well kept property.

Reviewed on Nov 25, 2025

Lime Tree Bay Resort
Hawks Cay Resort

Hawks Cay Resort

4 out of 5
61 Hawks Cay Blvd Marathon FL
  • 6 min drive from Dolphin Research Center
Book a stay at this luxury hotel in Marathon. Enjoy free WiFi, 5 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
8/10 Very Good! (1,004 reviews)
Enjoyed a few days with the kids gere

Reviewed on Nov 15, 2025

Hawks Cay Resort
Banana Bay Resort & Marina

Banana Bay Resort & Marina

3 out of 5
4590 Overseas Highway Marathon FL
  • 23 min drive from Dolphin Research Center
Book a stay at this golf hotel in Marathon. Enjoy free breakfast, a marina, and free bicycles on site. Our guests praise the pool and the helpful staff in our ...
7.6/10 Good! (1,017 reviews)
The facility was clean. Staff was friendly and attentive.

Reviewed on Nov 26, 2025

Banana Bay Resort & Marina
Fairfield Inn & Suites by Marriott Marathon Florida Keys

Fairfield Inn & Suites by Marriott Marathon Florida Keys

2.5 out of 5
13201 Overseas Hwy Marathon FL
  • 13 min drive from Dolphin Research Center
Book a stay at this business-friendly hotel in Marathon. Enjoy free breakfast, free WiFi, and 2 outdoor pools. Our guests praise the breakfast and the restaurant ...
9/10 Wonderful! (1,031 reviews)
Sstaff did not clean our room the 2 nights we spent there. Breakfast meals were very good.

Reviewed on Nov 28, 2025

Fairfield Inn & Suites by Marriott Marathon Florida Keys
Courtyard by Marriott Faro Blanco Resort

Courtyard by Marriott Faro Blanco Resort

3 out of 5
2146 Overseas Hwy Marathon FL
  • 26 min drive from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, 2 outdoor pools, and a full-service spa. Our guests praise the pool and the helpful staff in our ...
9/10 Wonderful! (1,001 reviews)
Lovely facilities and pool area

Reviewed on Nov 26, 2025

Courtyard by Marriott Faro Blanco Resort
Captain Pips Marina & Hideaway

Captain Pips Marina & Hideaway

3 out of 5
1480 Overseas Hwy Marathon FL
  • 27 min drive from Dolphin Research Center
Stay at this hotel in Marathon. Enjoy free WiFi, a marina, and free bicycles on site. Our guests praise the helpful staff and the clean rooms in our reviews. ...
8.8/10 Excellent! (1,027 reviews)
Room was very clean! Had a great stay!

Reviewed on Nov 27, 2025

Captain Pips Marina & Hideaway
Tranquility Bay Beachfront Hotel and Resort

Tranquility Bay Beachfront Hotel and Resort

4 out of 5
2600 Overseas Hwy Marathon FL
  • 26 min drive from Dolphin Research Center
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, free parking, and 3 outdoor pools. Our guests praise the pool and the helpful staff in our reviews. ...
8.8/10 Excellent! (1,003 reviews)
Excellent!!

Reviewed on Nov 21, 2025

Tranquility Bay Beachfront Hotel and Resort
Kingsail Resort

Kingsail Resort

2 out of 5
7050 Overseas Highway Marathon FL
  • 20 min drive from Dolphin Research Center
Stay at this motel in Marathon. Enjoy free WiFi, free parking, and a marina. Our guests praise the helpful staff and the clean rooms in our reviews. Popular ...
8.4/10 Very Good! (1,033 reviews)
i love it

Reviewed on Nov 23, 2025

Kingsail 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.

Find cheap hotels in Grassy Key

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How many hotels are there in Grassy Key?

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