Grassy Key, FL

Travel Guide

Dolphin Research Center showing a statue or sculpture and signage
Dolphin Research Center which includes a statue or sculpture
Dolphin Research Center showing signage
Photo by Monica Ferro
Photo by Monica Ferro
Photo by Monica Ferro
Photo by Monica Ferro
Rainbow Bend Resort

Rainbow Bend Resort

2.5 out of 5
57784 Overseas Hwy, Marathon, FL
The price is ₩144,313 per night from Sep 18 to Sep 19
₩144,313
₩225,062 total
Sep 18 - Sep 19
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 ...
8/10 Very Good! (737 reviews)
"Just a 1 night stopover - worked out well for us."

Reviewed on Sep 9, 2025

Rainbow Bend Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

2.5 out of 5
58182 Overseas Hwy, Marathon, FL
The price is ₩311,999 per night from Sep 23 to Sep 24
₩311,999
₩350,994 total
Sep 23 - Sep 24
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! (310 reviews)
"Staff was very attentive and available."

Reviewed on Aug 28, 2025

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 ₩136,718 per night from Sep 16 to Sep 17
₩136,718
₩153,808 total
Sep 16 - Sep 17
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! (493 reviews)
Great place
"Very nice place,pet friendly our little dog had an area to play in .Overall we were pleased with our room and the grounds.Quiet and peaceful, would stay again"

Reviewed on Sep 5, 2025

Gulf View Waterfront Resort
See all 2,309 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.
Cabins at Bonefish Bay

Cabins at Bonefish Bay

3 out of 5
12565 Overseas Hwy, Marathon, FL
Stay at this 3-star cabin in Marathon. Enjoy free WiFi, free parking, and free bicycles on site. Popular attractions Sombrero Beach and Captain Hooks Marina ...
9.6/10 Exceptional! (65 reviews)
"Checking in was easy, but the room we booked through orbits was supposed to be a deluxe family cabin for a group of 5. Instead we were given an aqua lodge(house boat). The photos show a trailer with a log cabin appearance, we were told an aqua lodge and the deluxe family cabin are the same thing ..."

Reviewed on Sep 8, 2025

Cabins at Bonefish Bay
Yacht Haven Marina

Yacht Haven Marina

3.5 out of 5
5 Sombrero Blvd, Marathon, FL
Stay at this 3.5-star 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! (206 reviews)
Loved it!
"My first visit but definitely will be back. Clean, comfortable, roomy..a beautiful experience. Plus a waterfront view of the sunset!"

Reviewed on Sep 10, 2025

Yacht Haven Marina
Tropical Cottages

Tropical Cottages

3 out of 5
243 61st Street Gulf, Marathon, FL
Stay at this cottage in Marathon. Enjoy free parking, daily housekeeping, and a garden. Popular attractions Sombrero Beach and Crane Point Museum and Nature ...
8.4/10 Very Good! (865 reviews)
"Very friendly staff, nice area"

Reviewed on Sep 6, 2025

Tropical Cottages
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.

Popular places to visit

Dolphin Research Center showing a statue or sculpture and signage

Dolphin Research Center

Learn about the playful nature of dolphins before swimming alongside these clever marine mammals at this entertaining research facility.

Dolphin Research Center
Sombrero Beach which includes a beach and general coastal views

Sombrero Beach

Play beach games; go swimming, kayaking or snorkeling; and lounge in the sun at one of Marathon’s most visited beaches.

Sombrero Beach
Seven Mile Bridge showing general coastal views and a bridge

Seven Mile Bridge

Walk, jog, cycle or drive across one of the longest bridges in North America to take in the scenic ocean views it provides.

Seven Mile Bridge
The sunrise at #islabellabeachresort is stunning. The service and amenities are the best in the Florida Keys

Vaca Key

Commune with nature and explore the great outdoors at Vaca Key during your travels in Marathon. Stroll along the beautiful beaches or discover the area's beautiful sunsets.

Vaca Key
Curry Hammock State Park showing a beach and kayaking or canoeing

Curry Hammock State Park

Go camping near mangroves, bird-watching beneath a thick canopy or kayaking between the islands of this scenic state park in the Middle Keys.

Curry Hammock State Park
A must visit in my opinion. Go to the turtle hospital and learn about our endangered friends. See the great work the hospital is doing to look after the turtles. Takes about 90 mins to go round,meet all the turtles and even feed them.

The Turtle Hospital

Explore the campus of The Turtle Hospital during your stay in Marathon. Stroll along the area's beautiful beaches, or simply savor its seafood restaurants.

The Turtle Hospital