Compare 2,306 hotels, room rates, hotel reviews and availability. Most hotels are fully refundable.

Our top choices for Grassy Key hotels

"The property is good and the staff is phenomenal!! However make sure to bring bug spray, NO FAULT of the property but due to the condition of the vegetation around this island. "

₩225,971 total

includes taxes & fees

Aug 25 - Aug 26

"Staff was friendly and accommodating. Pool area was nice and relaxing. "

₩352,411 total

includes taxes & fees

Sep 1 - Sep 2

"It was a perfect location in marathon."

₩154,430 total

includes taxes & fees

Aug 24 - Aug 25

"Beautiful hotel with fantastic facilities and stunning views. Great spot for some family downtime - the kids loved the pools and the linked fishing charters were awesome "

₩450,358 total

includes taxes & fees

Aug 25 - Aug 26

5 outdoor pools, cabanas (surcharge), pool umbrellas

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

₩387,482 total

includes taxes & fees

Sep 7 - Sep 8

"It was a great place to stay!"

₩149,538 total

includes taxes & fees

Sep 1 - Sep 2

"Perfect location, friendly staff, great onsite restaurant and facilities. Definitely will visit again! "

₩209,370 total

includes taxes & fees

Sep 21 - Sep 22

"This place was amazing for our 5 day stay. We will definitely be back in the future! "

₩268,201 total

includes taxes & fees

Sep 7 - Sep 8

"Excellent stay. "

₩443,128 total

includes taxes & fees

Sep 14 - Sep 15

2 outdoor pools, free cabanas, pool umbrellas

"Infinity pool and bar area were lovely. Breakfast options were very good and bar menu had many excellent choices. "

₩267,607 total

includes taxes & fees

Aug 27 - Aug 28

Outdoor pool, pool umbrellas, sun loungers

"Great location, has a pool bar and you can get food out by the pool."

₩220,262 total

includes taxes & fees

Sep 1 - Sep 2

"Great for family vacation "

₩172,337 total

includes taxes & fees

Sep 21 - Sep 22

Premium Room, 1 King Bed, Lanai, Lagoon View (Kitchenette) | View from room

"Nice vibe great staff "

₩132,311 total

includes taxes & fees

Sep 2 - Sep 3

"Wish check in was sooner but made out well, very quiet, personal parking, food truck near by and was all around a good stay"

₩125,936 total

includes taxes & fees

Aug 24 - Aug 25

"Excellent place to stay"

₩175,539 total

includes taxes & fees

Aug 24 - Aug 25

2 outdoor pools, pool umbrellas, sun loungers

"Great stay "

₩294,619 total

includes taxes & fees

Aug 28 - Aug 29

"Rooms where clean, cool, and comfortable. I will visit again."

₩182,764 total

includes taxes & fees

Aug 24 - Aug 25

"Great stay"

₩281,939 total

includes taxes & fees

Sep 1 - Sep 2

"It has a peaceful fishing area which is what I need."

₩242,677 total

includes taxes & fees

Aug 24 - Aug 25

"Good relax!!!"

₩281,957 total

includes taxes & fees

Aug 25 - Aug 26

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Stay near popular Grassy Key attractions

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.

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

"I absolutley LOVE Limetree! My husband and I have been visiting for years and we always look forward to our next stay! The rooms are great, on and off the main property. The pools, beaches are delighful and just what you need to relax and enjoy your time! The location is great for relaxing and close to great places to eat. We love Lazy days!! See you soon Limetree!"