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 ₩147,973 per night from Aug 9 to Aug 10
₩147,973
₩230,769 total
Aug 9 - Aug 10
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! (1,008 reviews)
"I'm really upset and disappointed because the pictures shown in this app from this Hotel are NOT what my family and I found when we got there. I got 2 rooms (number 3 and 4) right next to the oficice . Both rooms were dirty and the whole property is DETERIORATED and not well maintained, The rooms ..."

Reviewed on Aug 4, 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 ₩216,156 per night from Sep 2 to Sep 3
₩216,156
₩312,264 total
Sep 2 - Sep 3
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. ...
9.4/10 Exceptional! (481 reviews)
"Wish the AC was better. Amazing staff all around. Comfortable. A true beauty"

Reviewed on Aug 3, 2026

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 ₩204,756 per night from Sep 2 to Sep 3
₩204,756
₩230,350 total
Sep 2 - Sep 3
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! (598 reviews)
"Many of the guests that were staying considered the resort to belong to themselves only,leaving trash their kids stuff toys etc.all over common areas as well as occupying the community spaces as if no one else existed"

Reviewed on Aug 3, 2026

Gulf View Waterfront Resort
See all 2,367 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! (348 reviews)
"Fantastic place! It was super clean and looked just like the photos. We would stay here again!"

Reviewed on Aug 2, 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. ...
8.6/10 Excellent! (1,284 reviews)
"Very nice definitely coming back"

Reviewed on Aug 2, 2026

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. ...
9/10 Wonderful! (1,218 reviews)
"Las instalaciones ok pero para poco tiempo no hay lugares de comida y la piscina fuera se servicio"

Reviewed on Jul 27, 2026

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.