Grassy Key

Travel Guide

Dolphin Research Center showing signage and a statue or sculpture
Grassy Key
Grassy Key
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 RM438 per night from 17 Aug to 18 Aug
RM438
RM683 total
17 Aug - 18 Aug
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! (710 reviews)
"The motel was a quiet, nice area. Breakfast was good, cooked to order."

Reviewed on 31 Jul 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 RM926 per night from 1 Sept to 2 Sept
RM926
RM1,041 total
1 Sept - 2 Sept
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! (299 reviews)
"Nice quiet stay. Pools were nice. Beach is advertised but not really usable for swimming, snorkeling, etc. The bathtub faucet didn’t work and our air conditioner wasn’t functioning properly - it was always 75-76 degrees inside, which made for uncomfortable sleep. We were told maintenance would come, ..."

Reviewed on 28 Jul 2025

Grassy Flats Resort & Beach Club
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! (485 reviews)
"This is a fairly clean place. It has a great location to the water with jet ski rental at the property. The only real issue is the rooms are extremely noisy. We could here every step of the occupants above us and the highway noise was very loud in the room."

Reviewed on 18 Jul 2025

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Gulf View Waterfront Resort
See all 2,300 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! (187 reviews)
"It got everything we need and it is also very close to publix."

Reviewed on 4 Aug 2025

Yacht Haven Marina
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 San Pablo Catholic Church ...
9.8/10 Exceptional! (54 reviews)
"Awesome cabins!"

Reviewed on 28 Jul 2025

Cabins at Bonefish Bay
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! (839 reviews)
"I always stay at Tropical Cottages when we’re in the Keys. So special, so quiet, a great place!"

Reviewed on 2 Aug 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 signage and a statue or sculpture

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 general coastal views and a sandy beach

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

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
Vaca Key

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 which includes a sandy 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
The Turtle Hospital

The Turtle Hospital

Explore the campus of The Turtle Hospital as part of your travels around Marathon. Stroll along the area's seaside or simply savour its seafood restaurants.

The Turtle Hospital

Things to do

Marathon: Private Cable or Cable Kiteboarding Session

Marathon: Private Cable or Cable Kiteboarding Session

RM754
per traveller
Marathon: Private Cable or Cable Kiteboarding Session
Thumbs up!

Mangroves and Manatees - Guided Kayak Eco Tour

RM285
per adult
96% of travellers recommend
Mangroves and Manatees - Guided Kayak Eco Tour
Marathon Florida Keys Fishing Experience

Marathon Florida Keys Fishing Experience

RM3,807
per traveller
Marathon Florida Keys Fishing Experience
Marathon Maui Maui Fishing

Marathon Offshore Fishing Charter

RM6,380
per traveller
Marathon Offshore Fishing Charter
Marathon Inshore Fishing Charter

Marathon Inshore Fishing Charter

RM3,084
per traveller
80% of travellers recommend
Marathon Inshore Fishing Charter
Marathon Reef Fishing Trip

Marathon Reef Fishing Charters

RM4,679
per traveller
Marathon Reef Fishing Charters
See all activities in Grassy Key