Grassy Key, FL

Travel Guide

A dolphin swimming near a wooden dock and a tree branch in the water.
A beach with clear turquoise water, surrounded by lush green trees and a distant shoreline with buildings.
A calm bay with clear turquoise water, surrounded by lush green vegetation and a sandy beach.
A building with a blue awning labeled "Dolphin Research Center" and a dolphin logo.
A dolphin sculpture and a sign for the Dolphin Research Center.
Rainbow Bend Resort

Rainbow Bend Resort

2.5 out of 5
57784 Overseas Hwy Marathon FL
The price is ₩143,502 per night from Aug 25 to Aug 26
₩143,502
₩223,803 total
Aug 25 - Aug 26
includes taxes & fees
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 ...
8.2/10 Very Good! (1,007 reviews)
"Very bad service. Beds on the bug. No soap, no conditioner. No TV working."

Reviewed on Aug 19, 2026

Rainbow Bend Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
The price is ₩198,282 per night from Sep 24 to Sep 25
₩198,282
₩289,587 total
Sep 24 - Sep 25
includes taxes & fees
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. ...
Grassy Flats Resort & Beach Club
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
The price is ₩120,664 per night from Aug 26 to Aug 27
₩120,664
₩135,747 total
Aug 26 - Aug 27
includes taxes & fees
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! (606 reviews)
"The price was great compared to all the other hotels in Marathon. The grounds were nice but needed some maintenance as well as the rooms. I only stayed one night and just needed a place to spend the night. I would definitely stay here again for the price but not so much for the comfort."

Reviewed on Aug 23, 2026

Gulf View Waterfront Resort
See all 2,346 properties in Grassy Key
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.
Yacht Haven Marina

Yacht Haven Marina

3.5 out of 5
5 Sombrero Blvd Marathon FL
Stay at this houseboat in Marathon. Enjoy free WiFi, free parking, and a picnic area. Our guests praise the helpful staff in our reviews. Popular attractions ...
9.8/10 Exceptional! (353 reviews)
"Very clean nice and peaceful"

Reviewed on Aug 23, 2026

Yacht Haven Marina
Skipjack Resort & Marina

Skipjack Resort & Marina

3 out of 5
19 Sombrero Blvd Marathon FL
Book a stay at this golf aparthotel in Marathon. Enjoy free parking, a marina, and a fitness center. Our guests praise the breakfast and the pool in our reviews. ...
Skipjack Resort & Marina
Knight's Key Suites

Knight's Key Suites

3 out of 5
40 Kyle Way W Marathon FL
Stay at this aparthotel in Marathon. Enjoy free WiFi, free parking, and a picnic area. Our guests praise the helpful staff and the clean rooms in our reviews. ...
Knight's Key Suites
See all properties in Grassy Key
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.