Grassy Key

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 CA $145 per night from Nov 9 to Nov 10
CA $145
CA $226 total
Nov 9 - Nov 10
includes taxes & fees
Book a stay at this beach hotel in Marathon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff in our ...
8.2/10 Very good! (1,002 reviews)
"When was clean, Property was clean and organized, staff was really sweet and helpful. Best part was the lounge chairs on the beach watching the sunset. Close to a lot of state parks which we really enjoyed. Overall we’ll be back."

Reviewed on Nov 7, 2026

Rainbow Bend Resort
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
The price is CA $169 per night from Dec 2 to Dec 3
CA $169
CA $191 total
Dec 2 - Dec 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. ...
Gulf View Waterfront Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
The price is CA $258 per night from Dec 6 to Dec 7
CA $258
CA $357 total
Dec 6 - Dec 7
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! (504 reviews)
"Loved everything about this place!"

Reviewed on Nov 5, 2026

Grassy Flats Resort & Beach Club
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.
Wide Horizon oceanfront.  4 bedroom, 4 ½ bath,  kayaks, pool + observation deck.

Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.

Marathon FL
Book a stay at this beach vacation home in Marathon. Enjoy free WiFi, private pools, and a beach locale. Popular attractions Crawl Key and Grassy Key Marina ...
10/10 Exceptional! (49 reviews)
"Awesome views. Clean house. Fun places within walking and biking distance. Had a great time with the family playing the provided games and hanging out by the pool."

Reviewed on Oct 19, 2026

Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.
Brand New Three-Story Home's in Gated Community with Beach & Pool

Brand New Three-Story Home's in Gated Community with Beach & Pool

Marathon FL
Book a stay at this beach vacation home in Marathon. Enjoy free WiFi, a beach locale, and a water park. Popular attractions Keys Cable Park and Grassy Key Marina ...
10/10 Exceptional! (1 review)
"Beautiful property and very responsive host."

Reviewed on Jul 5, 2026

Brand New Three-Story Home's in Gated Community with Beach & Pool
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 ...
9.6/10 Exceptional! (382 reviews)
"Overall the cleanliness was good however there some areas needed some attention of cleaning such as toilet, dusting trash can, table ceiling fan and couple other items. Staff were great. The water pressure was weak both in shower and sink."

Reviewed on Nov 7, 2026

Yacht Haven Marina
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.

Things to do

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