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 RM424 per night from 9 Aug to 10 Aug
RM424
RM660 total
9 Aug - 10 Aug
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! (1,009 reviews)
"The property and the room smell really bad. The bathroom door does not working right."

Reviewed on 5 Aug 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 RM633 per night from 11 Aug to 12 Aug
RM633
RM908 total
11 Aug - 12 Aug
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. ...
9.4/10 Exceptional! (481 reviews)
"Wish the AC was better. Amazing staff all around. Comfortable. A true beauty"

Reviewed on 3 Aug 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 RM365 per night from 9 Aug to 10 Aug
RM365
RM411 total
9 Aug - 10 Aug
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
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 Wi-Fi, free parking and a picnic area. Our guests praise the helpful staff in their reviews. Popular attractions ...
9.8/10 Exceptional! (349 reviews)
"Loved our stay and would definitely recommend!"

Reviewed on 4 Aug 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! (1,285 reviews)
"everything was perf."

Reviewed on 5 Aug 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 Wi-Fi, free parking and a picnic area. Our guests praise the helpful staff and the clean rooms in their reviews. ...
9/10 Wonderful! (1,219 reviews)
"This was a great location close enough to everywhere we wanted to go. So grateful we were not near the rotting sargassum seaweed that we encountered driving through some of the other islands. The hotel pool was closed which was disappointing but it was communicated a few days before we traveled. ..."

Reviewed on 6 Aug 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.

Things to do

Mangroves and Manatees - Guided Kayak Eco Tour

Mangroves and Manatees - Guided Kayak Eco Tour

RM281
per adult
92% of travellers recommend
Mangroves and Manatees - Guided Kayak Eco Tour
Sunset Cruise

Sunset Cruise

RM363
per adult
100% of travellers recommend
Sunset Cruise
Sandbar Adventure Cruise in the Florida Keys

Sandbar Adventure Cruise in the Florida Keys

RM328
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

RM153
per adult
Marathon: Rhum Runner Aqua Park Adventure
Marathon FL Sandbar Cruise & Sightseeing Adventure

Marathon FL Sandbar Cruise & Sightseeing Adventure

RM464
per adult
100% of travellers recommend
Marathon FL Sandbar Cruise & Sightseeing Adventure
Day Sailing Adventure in the Florida Marine Sanctuary

Day Sailing Adventure in the Florida Marine Sanctuary

RM489
per adult
100% of travellers recommend
Day Sailing Adventure in the Florida Marine Sanctuary
See all activities in Grassy Key

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