Pet-friendly Vacations in Grassy Key 2026

Photo by Monica Ferro

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Pet-friendly Hotels in Grassy Key

Rainbow Bend Resort

57784 Overseas Hwy Marathon FL

22 min walk from Dolphin Research Center

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 ...

Grassy Flats Resort & Beach Club

58182 Overseas Hwy Marathon FL

14 min walk from Dolphin Research Center

Stay at this hotel in Marathon. Enjoy free WiFi, free parking, and 2 outdoor pools. Our guests praise the helpful staff and the property condition in our reviews. ...

Gulf View Waterfront Resort

58743 OVERSEAS HWY Marathon FL

4 min walk from Dolphin Research Center

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. ...

See all 2,369 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.