Grassy Key, FL

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
$139 nightly
The price is $156 total per night from Aug 23 to Aug 24
$156 total
Aug 23 - Aug 24
Total with taxes and fees
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 ...
8.2/10 Very Good! (1,008 reviews)
"I'm really upset and disappointed because the pictures shown in this app from this Hotel are NOT what my family and I found when we got there. I got 2 rooms (number 3 and 4) right next to the oficice . Both rooms were dirty and the whole property is DETERIORATED and not well maintained, The rooms ..."

Reviewed on Aug 4, 2026

Rainbow Bend Resort
Grassy Flats Resort & Beach Club

Grassy Flats Resort & Beach Club

4 out of 5
58182 Overseas Hwy Marathon FL
$197 nightly
The price is $222 total per night from Aug 13 to Aug 14
$222 total
Aug 13 - Aug 14
Total with taxes and fees
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. ...
9.4/10 Exceptional! (481 reviews)
"Wish the AC was better. Amazing staff all around. Comfortable. A true beauty"

Reviewed on Aug 3, 2026

Grassy Flats Resort & Beach Club
Gulf View Waterfront Resort

Gulf View Waterfront Resort

2.5 out of 5
58743 OVERSEAS HWY Marathon FL
$146 nightly
The price is $164 total per night from Aug 23 to Aug 24
$164 total
Aug 23 - Aug 24
Total with taxes and fees
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. ...
8.4/10 Very Good! (598 reviews)
"Many of the guests that were staying considered the resort to belong to themselves only,leaving trash their kids stuff toys etc.all over common areas as well as occupying the community spaces as if no one else existed"

Reviewed on Aug 3, 2026

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
Book a stay at this beach vacation home in Marathon. Enjoy free WiFi, private pools, and a beach locale. Popular attractions Crawl Key and Keys Cable Park are ...
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 Aug 1, 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 vacation home in Marathon. Enjoy free WiFi, 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 Jul 5, 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
Book a stay at this family-friendly vacation home in Marathon. Enjoy free WiFi, private pools, and laundry facilities. Popular attractions Crawl Key and Keys ...
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 Jul 18, 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

Cities near Grassy Key

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