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 RM422 per night from 27 Sept to 28 Sept
RM422
RM659 total
27 Sept - 28 Sept
includes taxes & fees
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 their ...
8.2/10 Very good! (1,002 reviews)
"The place is clean, and quaint. The staff is very helpful. Unfortunately, the sargassum was still pretty bad so the water was murky and smelled horrible. The pool was closed for maintenance, but we were allowed to use their Sister property. Breakfast was great!"

Reviewed on 20 Sept 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 RM383 per night from 23 Sept to 24 Sept
RM383
RM430 total
23 Sept - 24 Sept
includes taxes & fees
Stay at this hotel in Marathon. Enjoy free Wi-Fi, free parking and daily housekeeping. Our guests praise the helpful staff and the clean rooms in their reviews. ...
Gulf View Waterfront Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
Fully refundableReserve now, pay when you stay
The price is RM714 per night from 21 Oct to 22 Oct
RM714
RM999 total
21 Oct - 22 Oct
includes taxes & fees
Stay at this hotel in Marathon. Enjoy free Wi-Fi, free parking and 2 outdoor pools. Our guests praise the helpful staff and the property condition in their reviews. ...
Grassy Flats Resort & Beach Club
See all 2,363 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 Wi-Fi, free parking and a picnic area. Our guests praise the helpful staff in their reviews. Popular attractions ...
9.8/10 Exceptional! (361 reviews)
"Absolute hidden gem. Watched the water burst with life right off our balcony. Manatees, dolphins, tarpon, explosions of baitfish trying to get away. Hard to leave and do anything else."

Reviewed on 21 Sept 2026

Yacht Haven Marina
Skipjack Resort & Marina

Skipjack Resort & Marina

3 out of 5
19 Sombrero Blvd Marathon FL
Stay at this golf aparthotel in Marathon. Enjoy free parking, a marina and a fitness centre. Our guests praise the breakfast and the pool in their reviews. Popular ...
8.6/10 Excellent! (1,290 reviews)
"We didn't stay, one hour there was more than enough to decide to walk. Not very clean and not at all like the images, construction work going on, broken elevator, and very noisy with the works. Cant comment on the people or service as didnt encounter anyone other than workmen, though in messages ..."

Reviewed on 2 Sept 2026

Skipjack Resort & Marina
Cabins at Bonefish Bay

Cabins at Bonefish Bay

3 out of 5
12565 Overseas Hwy Marathon FL
Stay at this cabin in Marathon. Enjoy free Wi-Fi, free parking and free bicycles on-site. Popular attractions Sombrero Beach and Captain Hooks Marina and Dive ...
9.4/10 Exceptional! (130 reviews)
"Excelente"

Reviewed on 20 Sept 2026

Cabins at Bonefish Bay
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.

Things to do

Sunset Cruise

Sunset Cruise

RM287
per adult
100% of travellers recommend
Sunset Cruise
Mangroves and Manatees - Guided Kayak Eco Tour

Mangroves and Manatees - Guided Kayak Eco Tour

RM278
per adult
92% of travellers recommend
Mangroves and Manatees - Guided Kayak Eco Tour
Sandbar Adventure Cruise in the Florida Keys

Sandbar Adventure Cruise in the Florida Keys

RM411
per adult
100% of travellers recommend
Sandbar Adventure Cruise in the Florida Keys
Marathon: Rhum Runner Aqua Park Adventure

Marathon: Rhum Runner Aqua Park Adventure

RM151
per adult
Marathon: Rhum Runner Aqua Park Adventure
Marathon FL Sandbar Cruise & Sightseeing Adventure

Marathon FL Sandbar Cruise & Sightseeing Adventure

RM367
per adult
100% of travellers recommend
Marathon FL Sandbar Cruise & Sightseeing Adventure
Florida Keys Nature & History Tour from Key West

Florida Keys Nature & History Tour from Key West

RM479
per adult
88% of travellers recommend
Florida Keys Nature & History Tour from Key West
See all activities in Grassy Key

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