Grassy Key

Travel Guide

A dolphin swimming near a wooden dock and a tree branch in the water.
A beach with clear turquoise water, surrounded by lush green trees and a distant shoreline with buildings.
A calm bay with clear turquoise water, surrounded by lush green vegetation and a sandy beach.
A building with a blue awning labeled "Dolphin Research Center" and a dolphin logo.
A dolphin sculpture and a sign for the Dolphin Research Center.
Rainbow Bend Resort

Rainbow Bend Resort

2.5 out of 5
57784 Overseas Hwy Marathon FL
The price is €140 per night from 12 Aug to 13 Aug
€140
12 Aug - 13 Aug
includes taxes & fees
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 their ...
8.2/10 Very good! (1,009 reviews)
"The property and the room smell really bad. The bathroom door does not working right."

Reviewed on 5 Aug 2026

Rainbow Bend Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
The price is €194 per night from 17 Aug to 18 Aug
€194
17 Aug - 18 Aug
includes taxes & fees
Stay at this hotel in Marathon. Enjoy free Wi-Fi, free parking and 2 outdoor pools. Our guests praise the helpful staff and the property condition in their reviews. ...
9.4/10 Exceptional! (481 reviews)
"Wish the AC was better. Amazing staff all around. Comfortable. A true beauty"

Reviewed on 3 Aug 2026

Grassy Flats Resort & Beach Club
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
The price is €98 per night from 10 Aug to 11 Aug
€98
10 Aug - 11 Aug
includes taxes & fees
Stay at this hotel in Marathon. Enjoy free Wi-Fi, free parking and daily housekeeping. Our guests praise the helpful staff and the clean rooms in their reviews. ...
Gulf View Waterfront Resort
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.
Wide Horizon oceanfront.  4 bedroom, 4 ½ bath,  kayaks, pool + observation deck.

Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.

Marathon FL
Stay at this beach holiday home in Marathon. Enjoy free Wi-Fi, private pools and a beach locale. Popular attractions Crawl Key and Keys Cable Park are located ...
10/10 Exceptional! (46 reviews)
"Beautiful property and Roman and Karen are wonderful hosts. The house is clean and well stocked. The linens and towels are high quality. The pool is perfect and the view is unmatched. We loved the property so much that we never wanted to leave. Roman and Karen are the nicest hosts and available for ..."

Reviewed on 1 Aug 2026

Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.
🌊 Private Oasis With Pool Spa Dock and Ocean right in your backyard 🌊 allow pets

🌊 Private Oasis With Pool Spa Dock and Ocean right in your backyard 🌊 allow pets

Marathon FL
Stay at this holiday home in Marathon. Enjoy free Wi-Fi, private pools and a garden. Popular attractions Crawl Key and Curry Hammock State Park are located ...
9.2/10 Wonderful! (64 reviews)
"We had a great week at this property and ultimately gave it 5 stars because it delivered exactly what we needed: an unbeatable location, beautiful water views, and a convenient home base for exploring the Keys.The biggest strengths are definitely the setting and location. The views are fantastic, ..."

Reviewed on 5 Jul 2026

🌊 Private Oasis With Pool Spa Dock and Ocean right in your backyard 🌊 allow pets
Beautiful Ocean Front View

Beautiful Ocean Front View

Marathon FL
Stay at this family-friendly holiday home in Marathon. Enjoy free Wi-Fi, private pools and laundry facilities. Popular attractions Crawl Key and Keys Cable Park ...
9.8/10 Exceptional! (20 reviews)
"House and pool were awesome. Plenty of room and pool was spacious. Only thing was the sargassum was pretty bad this time of year. We did not know that! Other than that it was pretty awesome."

Reviewed on 18 Jul 2026

Beautiful Ocean Front View
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.

Things to do

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