Compare 2,273 hotels, room rates, hotel reviews and availability. Most hotels are fully refundable.

Relax on the beachfront deck with ocean views and a pergola overhead, perfect for dining or unwinding.

"Great for a quiet weekend get away or longer. Peaceful and super nice staff. "

₩254,168 total

includes taxes & fees

Aug 3 - Aug 4

Relax by the pool surrounded by palm trees and enjoy access to the ocean.

"It was a perfect location in marathon."

₩167,464 total

includes taxes & fees

Aug 4 - Aug 5

Relax by the pool surrounded by palm trees and lounge chairs.

"Amazing views, the staff was excellent and very friendly. Will definitely be staying here again"

₩358,814 total

includes taxes & fees

Aug 10 - Aug 11

Enjoy a serene beach experience with a tranquil sea and a picturesque pier.

"Beautiful resort! All the amenities were great and it was centrally located."

₩232,981 total

includes taxes & fees

Aug 11 - Aug 12

Relax by the clear swimming pool surrounded by lounge chairs and umbrellas, with access to the beach and shallow waters.

"Great place, beautiful apartment! "

₩266,400 total

includes taxes & fees

Aug 17 - Aug 18

Guests can enjoy stunning ocean views from the property's waterfront piers.

"Good relax!!!"

₩336,353 total

includes taxes & fees

Aug 5 - Aug 6

Relax on the serene beach, surrounded by swaying palm trees and smooth rocks leading to the calm sea.

"Amazing "

₩167,464 total

includes taxes & fees

Aug 17 - Aug 18

"Great stay with family! Lots to do and plenty nearby for other dining and shopping options."

₩545,886 total

includes taxes & fees

Aug 22 - Aug 23

Relax by the resort pool overlooking the ocean, surrounded by lounge chairs and umbrellas.

"Great place "

₩382,029 total

includes taxes & fees

Aug 3 - Aug 4

Relax by the tranquil waterfront, where a dock extends into the calm body of water.

"Loved this place!"

₩134,394 total

includes taxes & fees

Aug 3 - Aug 4

Relax by the serene pool surrounded by a patio with lounge chairs and umbrellas.

"Well maintained and service Friendly clean atmosphere great breakfast service "

₩218,781 total

includes taxes & fees

Aug 10 - Aug 11

Guests can enjoy waterfront views from the porch of this charming building.

"Great place, good people, and our family enjoyed our stay."

₩222,034 total

includes taxes & fees

Aug 13 - Aug 14

Relax by the water's edge in this serene outdoor seating area, featuring a thatched roof and comfortable tables and chairs.

"I recommend Bonefish Bay Motel."

₩145,892 total

includes taxes & fees

Aug 17 - Aug 18

Enjoy scenic views of the marina and surrounding greenery from this coastal property.

"What a beautiful property with great facilities right on the ocean. The room was clean, modern and had excellent facilities. Staff were really friendly and helpful."

₩244,288 total

includes taxes & fees

Aug 17 - Aug 18

Relax in a serene outdoor setting surrounded by palm trees and enjoy a meal or quiet moment in the shaded seating area.

"Best deal in the Florida Keys! Nothing fancy - but super clean and perfect for showering and sleeping. The staff is top notch!"

₩164,660 total

includes taxes & fees

Aug 3 - Aug 4

Enjoy a serene beach setting with palm trees, rocks, and lush greenery.

"I absolutely loved this place and can't wait to go back. The boat was beautiful inside and had everything we needed. "

₩427,867 total

includes taxes & fees

Aug 3 - Aug 4

Relax on the tranquil waterfront with a peaceful spot to unwind, surrounded by lush greenery and a serene atmosphere.

"Amazing place very clean "

₩182,537 total

includes taxes & fees

Aug 11 - Aug 12

Relax by the pool surrounded by lush greenery and enjoy a refreshing dip in the clear water.

"Wonderful stay, although mattress could be better. Employees were polite and property was clean. Overall we had a great time."

₩119,369 total

includes taxes & fees

Aug 11 - Aug 12

Relax in a serene outdoor space surrounded by lush greenery, featuring a thatched-roof structure and comfortable wicker seating.

"Super cute little cottage with a great location, would definitely stay again!"

₩156,363 total

includes taxes & fees

Aug 3 - Aug 4

Relax in this spacious room with a comfortable sofa, dining area, and kitchen.

"We loved our weekend stay here. "

₩362,917 total

includes taxes & fees

Aug 10 - Aug 11

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Stay near popular Grassy Key attractions

Sombrero Beach

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

Learn more about Grassy Key

Experience the seaside area of Grassy Key—beaches, a scenic waterfront, and sights from Curry Hammock State Park to Keys Cable Park.

See all hotels in Grassy Key

Dolphin Research Center showing a statue or sculpture and signage

Top Grassy Key Hotel Reviews

Lime Tree Bay Resort

10/10 Excellent

"Great place, beautiful apartment! "

Courtyard by Marriott Faro Blanco Resort

10/10 Excellent

"The amenities on this property were top notch, definitely one of the best Courtyard Marriott’s I have stayed in. The 2 pools, fitness center and bar/ restaurant were great. The decide was amazing, especially the bar tenders and Carlene at the breakfast bar worked so hard to make our stay great."