Grassy Key Hotel Guide - Adventure Sport Hotels in Grassy Key, Marathon
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Our top choices for Grassy Key adventure hotels
9.2 out of 10, Wonderful, (1111)
"Great place "
Oscar
9.0 out of 10, Wonderful, (1000)
"Staff was so sweet! Great place to stay "
Shanna
The price is €322
includes taxes & fees
25 Jan - 26 Jan 2026
5.0 out of 10, (1002)
"Great room great rates and the management was tremendous "
Anton M
The price is €98
includes taxes & fees
19 Jan - 20 Jan 2026
7.4 out of 10, Good, (173)
"It was not clean and they cleaned it on the second day of our stay."
Anais
The price is €518
includes taxes & fees
3 Jan - 4 Jan 2026
Marathon Oceanfront Room | 2Queens + Spa-Like Bath
Marathon Oceanfront Room | 2Queens + Spa-Like BathMarathon
The price is €362
includes taxes & fees
6 Jan - 7 Jan 2026
Tropical Escape | King Room w/ Resort Perks
Tropical Escape | King Room w/ Resort PerksDuck Key
The price is €293
includes taxes & fees
4 Jan - 5 Jan 2026
Charming 2-bedroom house in Marathon with pool
Charming 2-bedroom house in Marathon with poolMarathon
8.0 out of 10, Very good, (2)
"Great Home & Location & Enjoyable Stay! Thanks!"
James J.
Discount To Jan 31! 3 Bed, 3 BA Townhome Cabana Club: Oceanfront Beach, Pool!
Discount To Jan 31! 3 Bed, 3 BA Townhome Cabana Club: Oceanfront Beach, Pool!Marathon
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.
Top Grassy Key Hotel Reviews
Fairfield Inn & Suites by Marriott Marathon Florida Keys
10/10 Excellent
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