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 ₩207,011 per night from Jul 20 to Jul 21
₩207,011
₩294,557 total
Jul 20 - Jul 21
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! (665 reviews)
"They need more service personnel the food was good and the location is close to all activities"

Reviewed on Jun 22, 2025

Rainbow Bend Resort
Gulf View Waterfront Resort
Gulf View Waterfront Resort
2.5 out of 5
58743 OVERSEAS HWY, Marathon, FL
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! (477 reviews)
"The property was Ok just needs a little upgrades our bath tub looked like it was old but, overall the stay was good. The area for the dogs was great and, the views of the dock outstanding. Manuel in front desk very nice and courteous. The only thing missing was a beach area with a bar."

Reviewed on Jun 20, 2025

Get rates
Gulf View Waterfront Resort
Grassy Flats Resort & Beach Club
Grassy Flats Resort & Beach Club
2.5 out of 5
58182 Overseas Hwy, Marathon, FL
The price is ₩329,943 per night from Jun 30 to Jul 1
₩329,943
₩371,186 total
Jun 30 - Jul 1
includes taxes & fees
Book a stay at this beach hotel in Marathon. Enjoy free WiFi, free parking, and 2 outdoor pools. Our guests praise the helpful staff and the property condition ...
9.4/10 Exceptional! (285 reviews)
Excellent
"We enjoyed our stay in Grassy Flats. The staff were very helpful when our hire car broke down!"

Reviewed on Jun 19, 2025

Grassy Flats Resort & Beach Club
See all 2,229 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 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! (162 reviews)
"I loved this houseboat! It had 2 full beds in separate spaces, a twin in the loft and a pullout. Plus a kitchen with a full size fridge, sink and 2 burner stove. We borrowed kayaks and bikes to explore marathon - both included with our stay. I enjoyed sitting on the back porch watching the fish and ..."

Reviewed on Jun 23, 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! (817 reviews)
"Cute place, convenient location"

Reviewed on Jun 17, 2025

Tropical Cottages
Knight's Key Suites
Knight's Key Suites
3 out of 5
40 Kyle Way W, Marathon, FL
Stay at this 3-star aparthotel in Marathon. Enjoy free WiFi, free parking, and a picnic area. Our guests praise the helpful staff and the clean rooms in our ...
8.8/10 Excellent! (1,119 reviews)
"Friendly employees and good value."

Reviewed on Jun 15, 2025

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.

Popular places to visit

Dolphin Research Center showing a statue or sculpture and signage

Dolphin Research Center

4.5/5(194 reviews)

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

4.5/5(417 reviews)

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

4.5/5(830 reviews)

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
Curry Hammock State Park showing a beach and kayaking or canoeing

Curry Hammock State Park

4.5/5(161 reviews)

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

Vaca Key

4.5/5(39 reviews)

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

Vaca Key
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

4.5/5(181 reviews)

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

The Turtle Hospital