Title: Grassy Key Travel Guide: Best of Grassy Key, Marathon Travel 2026 | Expedia.co.uk [Hotels in Grassy Key](https://expedia.co.uk/Grassy-Key-Hotels.d3000451823.Travel-Guide-Hotels)[Holiday Rentals in Grassy Key](https://expedia.co.uk/Grassy-Key-Holiday-Rentals.d3000451823.Travel-Guide-HolidayRentals)[Flights to Grassy Key](https://expedia.co.uk/Cheap-Flights-To-Grassy-Key.d3000451823.Travel-Guide-Flights)[Things to do in Grassy Key](https://expedia.co.uk/Things-To-Do-In-Grassy-Key.d3000451823.Travel-Guide-Activities)[Grassy Key Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Grassy-Key.d3000451823.Car-Hire-Guide)[Grassy Key Holidays](https://expedia.co.uk/Grassy-Key.d3000451823.Holidays-City-Breaks) # Grassy Key Travel Guide ## Tourist Guide ![Oh Hello there, Hoomans. Are you coming into the water? #lifeatexpedia #LikeALocal #dolphins #floridakeys ](https://images.trvl-media.com/place/2437/83757040-1d80-4589-aea2-a5fe1bb3ba0c.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Curry Hammock State Park which includes a bay or harbour and a sandy beach](https://images.trvl-media.com/place/6069251/473d7d6a-4054-46e6-808c-507f897ba4e3.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Curry Hammock State Park featuring a beach and kayaking or canoeing](https://images.trvl-media.com/place/6069251/d636ff94-c354-48a9-b298-84e015ad56d7.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Dolphin Research Center showing signage](https://images.trvl-media.com/place/6069241/563a894a-a12a-4d37-92cf-7adafd4a7678.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ![Dolphin Research Center which includes a statue or sculpture and signage](https://images.trvl-media.com/place/6069241/06098647-0cf2-444a-a5ad-496d92022883.jpg?impolicy=fcrop&w=1040&h=580&q=mediumHigh) ## Visit Grassy Key Things to do - Top hotels in Grassy Key - Top Holiday Rentals in Grassy Key ![Rainbow Bend Resort](https://images.trvl-media.com/lodging/4000000/3870000/3864000/3863945/d4b7beed_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Rainbow Bend Resort 57784 Overseas Hwy Marathon FL Fully refundableReserve now, pay when you stay £161 12 Apr - 13 Apr 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! (894 reviews) Good property Reviewed on 23 Mar 2026 [](https://expedia.co.uk/Hotel-Search?startDate=12%2F04%2F2026&endDate=13%2F04%2F2026&selected=3863945&PinnedHotelID=3863945&HadPinnedHotel=true®ionId=3000451823) ![Grassy Flats Resort & Beach Club](https://images.trvl-media.com/lodging/37000000/36890000/36881900/36881801/d5720c3e_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Grassy Flats Resort & Beach Club 58182 Overseas Hwy Marathon FL £266 23 Apr - 24 Apr 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! (420 reviews) Our stay at the Grassy Flats Resort & Beach Club was outstanding. Superb location & grounds, facilities and staff. Two great dining options, the Palm Deck outdoors casual and the Rhum House indoors, upscale and also with a great Ocean view. The Market next door was extremely convenient for breakfast, ... Reviewed on 24 Mar 2026 [](https://expedia.co.uk/Hotel-Search?startDate=23%2F04%2F2026&endDate=24%2F04%2F2026&selected=36881801&PinnedHotelID=36881801&HadPinnedHotel=true®ionId=3000451823) ![Gulf View Waterfront Resort](https://images.trvl-media.com/lodging/14000000/13280000/13278600/13278553/46de1e0c_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Gulf View Waterfront Resort 58743 OVERSEAS HWY Marathon FL £195 19 Apr - 20 Apr 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. ... 8.4/10 Very Good! (562 reviews) It is a cute little place to stay. We enjoyed the pool, outdoor games and relaxed on the little beach area Reviewed on 19 Mar 2026 [](https://expedia.co.uk/Hotel-Search?startDate=19%2F04%2F2026&endDate=20%2F04%2F2026&selected=13278553&PinnedHotelID=13278553&HadPinnedHotel=true®ionId=3000451823) [See all 2,289 properties in Grassy Key](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.Hotels.DestinationExperience&startDate=26%2F03%2F2026&endDate=27%2F03%2F2026®ionId=3000451823) 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. ![The Nautilus on the Ocean in Grassy Key 4 bed 3 bath with private pool, Hot Tub and oceanfront, 2 kayaks included](https://images.trvl-media.com/lodging/103000000/102830000/102829100/102829071/w1616h1080x152y0-b65662e9_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### The Nautilus on the Ocean in Grassy Key 4 bed 3 bath with private pool, Hot Tub and oceanfront, 2 kayaks included Marathon FL Stay at this beach holiday home in Marathon. Enjoy free Wi-Fi, private pools and a beach locale. Popular attractions Keys Cable Park and Crawl Key are located ... 8.8/10 Excellent! (6 reviews) Such a Fun Trip!! We had the best time in Marathon! The house was, clean, cozy and comfortable and the AC worked great! We loved the spacious areas for hanging out downstairs and the pool and hot tub were wonderful!!!! Reviewed on 24 Jul 2025 [](https://expedia.co.uk/Marathon-Hotels-The-Nautilus-On-The-Ocean-In-Grassy-Key-4-Bed-3-Bath-With-Private-Pool.h102829071.Hotel-Information) ![🌊 Private Oasis With Pool Spa Dock and Ocean right in your backyard 🌊 allow pets](https://images.trvl-media.com/lodging/75000000/74880000/74876600/74876573/w1108h721x50y0-632992a9_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### 🌊 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! (53 reviews) The house was great, the views are amazing. Great fish off the dock. There is a reef 1 mile off shore the we fished on windy days . Caught all kinds of different fish. Shark, snappers, permit ,blow fish . Reviewed on 8 Mar 2026 [](https://expedia.co.uk/Marathon-Hotels-Private-Oasis-With-Pool-Spa-Dock-And-Ocean-Right-In-Your-Backyard-Allow-Pets.h74876573.Hotel-Information) ![Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.](https://images.trvl-media.com/lodging/94000000/93400000/93394200/93394137/57bc863f_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### 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! (39 reviews) Great stay Could have been more bed blankets and another outdoor garbage can instead of just 1 The owner which lives next to this property was very responsive and helpful when needing anything Reviewed on 16 Mar 2026 [](https://expedia.co.uk/Marathon-Hotels-Wide-Horizon-Oceanfront-4-Bedroom.h93394137.Hotel-Information) [See all properties in Grassy Key](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.Hotels.DestinationExperience®ionId=3000451823&sort=VACATION_RENTAL) 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. ## Check Grassy Key hotel availability [Tonight ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-03-25&endDate=2026-03-26)[25 Mar - 26 Mar](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-03-25&endDate=2026-03-26) [Tomorrow night ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-03-26&endDate=2026-03-27)[26 Mar - 27 Mar](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-03-26&endDate=2026-03-27) [This weekend ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=27%2F03%2F2026&endDate=29%2F03%2F2026)[27 Mar - 29 Mar](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=27%2F03%2F2026&endDate=29%2F03%2F2026) [Next weekend ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=03%2F04%2F2026&endDate=05%2F04%2F2026)[3 Apr - 5 Apr](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=03%2F04%2F2026&endDate=05%2F04%2F2026) ### Popular places to visit ![Dolphin Research Center which includes a statue or sculpture and signage](https://images.trvl-media.com/place/6069241/06098647-0cf2-444a-a5ad-496d92022883.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Dolphin Research Center 4.5/5(4 reviews) Learn about the playful nature of dolphins before swimming alongside these clever marine mammals at this entertaining research facility. [](https://expedia.co.uk/Dolphin-Research-Center-Marathon.d6069241.Attraction) ![Sombrero Beach featuring a sandy beach and general coastal views](https://images.trvl-media.com/place/6069239/5ccae969-638f-4ecd-a8cd-1f9c106277ba.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Sombrero Beach 4.5/5(7 reviews) Play beach games; go swimming, kayaking or snorkeling; and lounge in the sun at one of Marathon’s most visited beaches. [](https://expedia.co.uk/Sombrero-Beach-Marathon.d6069239.Attraction) ![Seven Mile Bridge showing general coastal views and a bridge](https://images.trvl-media.com/place/6127942/fdf83727-1433-4d19-9ed9-5a2480ab6e0f.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Seven Mile Bridge 4.5/5(20 reviews) Walk, jog, cycle or drive across one of the longest bridges in North America to take in the scenic ocean views it provides. [](https://expedia.co.uk/Seven-Mile-Bridge-Marathon.d6127942.Attraction) ![Sombrero Key Lighthouse offshore of Vaca Key in Marathon in the Florida Keys. ](https://images.trvl-media.com/place/553248635976196298/4d7e3ab8-584b-4994-a6fb-3ecdc1579748.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Vaca Key Commune with nature and explore the great outdoors at Vaca Key during your travels in Marathon. Stroll along the marina or discover the area's beautiful sunsets. [](https://expedia.co.uk/Vaca-Key-Marathon.d553248635976196298.Attraction) ![Curry Hammock State Park featuring a beach and kayaking or canoeing](https://images.trvl-media.com/place/6069251/d636ff94-c354-48a9-b298-84e015ad56d7.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Curry Hammock State Park 4.5/5(2 reviews) Go camping near mangroves, bird-watching beneath a thick canopy or kayaking between the islands of this scenic state park in the Middle Keys. [](https://expedia.co.uk/Curry-Hammock-State-Park-Marathon.d6069251.Attraction) ![A must visit in my opinion. Go to the turtle hospital and learn about our endangered friends. See the great work the hospital is doing to look after the turtles. Takes about 90 mins to go round,meet all the turtles and even feed them.](https://images.trvl-media.com/place/2437/044085fa-249f-46fa-abf9-7ead4bf6fabe.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### The Turtle Hospital 5/5(9 reviews) Explore the campus of The Turtle Hospital as part of your travels around Marathon. Stroll along the area's marina or simply savour its seafood restaurants. [](https://expedia.co.uk/The-Turtle-Hospital-Marathon.d6068609.Attraction) ### Things to do ![Marathon: Rhum Runner Aqua Park Adventure](https://mediaim.expedia.com/localexpert/49181060/0b0d5141-d114-4720-afa3-daa97fdbedd0.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Marathon: Rhum Runner Aqua Park Adventure £28 per adult [](https://expedia.co.uk/things-to-do/marathon-rhum-runner-aqua-park-adventure.a49181060.activity-details) ![Our sailboat is named Chao Lay. The boat has completed one complete circumnavigation of the globe crossing the Atlantic, Pacific, and Indian Oceans. ](https://mediaim.expedia.com/localexpert/49731974/9bcca512-f4ca-4864-89e5-7f2aa50b8fae.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Day Sailing Adventure in the Florida Marine Sanctuary £89 per adult **100%** of travellers recommend [](https://expedia.co.uk/things-to-do/day-sailing-adventure-in-the-florida-marine-sanctuary.a49731974.activity-details) ![Florida Keys Nature & History Tour from Key West](https://mediaim.expedia.com/localexpert/1344631/68468f72-4cd4-48b5-8f94-0f1b34d803d8.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Florida Keys Nature & History Tour from Key West £81 per adult **88%** of travellers recommend [](https://expedia.co.uk/things-to-do/florida-keys-nature-history-tour-from-key-west.a1344631.activity-details) [See all activities in Grassy Key](https://expedia.co.uk/Things-To-Do-In-Grassy-Key.d3000451823.Travel-Guide-Activities) ## Cities near Grassy Key ![Marathon showing swimming, a sandy beach and tropical scenes](https://images.trvl-media.com/place/2437/cc4c0572-7b75-47ab-8142-b235acf8743c.jpg?impolicy=fcrop&w=512&h=288&q=medium) ### Marathon ## Explore a world of travel with Expedia - 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[Flights from Gaithersburg (GAI) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/gai/mth/gaithersburg-to-marathon) - [Flights from Washington (IAD) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/iad/mth/washington-to-marathon) - [Flights from Houston (IAH) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/iah/mth/houston-to-marathon) - [Flights from London (LGW) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/lgw/mth/london-to-marathon) - [Flights from London (LHR) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/lhr/mth/london-to-marathon) - [Flights from Lancaster (LNS) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/lns/mth/lancaster-to-marathon) - [Flights from Orlando (MCO) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/mco/mth/orlando-to-marathon) - [Flights from Manchester (MHT) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/mht/mth/manchester-to-marathon) - [Flights from Miami (MIA) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/mia/mth/miami-to-marathon) - [Flights from Melbourne (MLB) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/mlb/mth/melbourne-to-marathon) - [Flights from Minneapolis (MSP) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/msp/mth/minneapolis-to-marathon) - [Flights from Orlando (ORL) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/orl/mth/orlando-to-marathon) - [Flights from Raleigh (RDU) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/rdu/mth/raleigh-to-marathon) - [Flights from Tampa (TPA) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/tpa/mth/tampa-to-marathon) - [Flights from Valencia (VLC) to Marathon (MTH) ](https://www.expedia.co.uk/lp/flights/vlc/mth/valencia-to-marathon) - [Visit Bahia Honda Key ](https://www.expedia.co.uk/Bahia-Honda-Key.dx553248635083902001) - [Visit Eden Pines ](https://www.expedia.co.uk/Big-Pine-Key-Eden-Pines.dx553248635976471710) - [Visit Big Pine Key ](https://www.expedia.co.uk/Big-Pine-Key.dx7195) - [Visit Big Torch Key ](https://www.expedia.co.uk/Big-Torch-Key.dx553248635974614531) - [Visit Cudjoe Key ](https://www.expedia.co.uk/Cudjoe-Key.dx3000430966) - [Curry Hammock State Park ](https://www.expedia.co.uk/Curry-Hammock-State-Park-Marathon.d6069251.Attraction) - [Duck Key Holidays ](https://www.expedia.co.uk/Duck-Key.d184267.Holidays-City-Breaks) - [Visit Duck Key ](https://www.expedia.co.uk/Duck-Key.dx184267) - [Visit Flamingo ](https://www.expedia.co.uk/Flamingo.dx553248635074842070) - [Visit Islamorada ](https://www.expedia.co.uk/Islamorada.dx10768) - [Visit Key Colony Beach ](https://www.expedia.co.uk/Key-Colony-Beach.dx121486) - [Visit Anglers Park ](https://www.expedia.co.uk/Key-Largo-Anglers-Park.dx553248635976468912) - [Visit Key Largo ](https://www.expedia.co.uk/Key-Largo.dx8369) - [Visit Layton ](https://www.expedia.co.uk/Layton.dx6177793) - [Visit Lignumvitae Key Botanical State Park ](https://www.expedia.co.uk/Lignumvitae-Key-Botanical-State-Park.dx553248621532652349) - [Visit Little Torch Key ](https://www.expedia.co.uk/Little-Torch-Key.dx177498) - [Visit Long Key ](https://www.expedia.co.uk/Long-Key.dx177527) - 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[Visit Tingler Island ](https://www.expedia.co.uk/Tingler-Island.dx553248635976196806) - [Visit Upper Matecumbe Key ](https://www.expedia.co.uk/Upper-Matecumbe-Key.dx553248635975749648) - [All inclusive Holiday Packages Duck Key ](https://www.expedia.co.uk/lp/theme-holidays/all-inclusive-holidays/184267/Duck-Key) - [Golf Holiday Packages Duck Key ](https://www.expedia.co.uk/lp/theme-holidays/golf-holidays/184267/Duck-Key) - [Mountain Holiday Packages Duck Key ](https://www.expedia.co.uk/lp/theme-holidays/mountain-holidays/184267/Duck-Key) - [Ski Holiday Packages Duck Key ](https://www.expedia.co.uk/lp/theme-holidays/ski-holidays/184267/Duck-Key) - [Car hire near Duck Key ](https://www.expedia.co.uk/Compare-Cheap-Car-Hire-In-Duck-Key.d184267.Car-Hire-Guide) - [Rental cars Florida Keys Marathon airport ](https://www.expedia.co.uk/Compare-Cheap-Car-Hire-In-Florida-Keys-Marathon.d6030314.Car-Hire-Guide) - [Dollar Rent A Car Rental Cars in Duck Key ](https://www.expedia.co.uk/Dollar-Rent-A-Car-Car-Rentals-In-Duck-Key.d184267-c43.Car-Rental-Guide-Suppliers) - [Pickup Car Hire in Duck Key ](https://www.expedia.co.uk/Pickup-Car-Rentals-In-Duck-Key.d184267-tPickup.Car-Rental-Guide-Class) - [Thrifty Car Rental Rental Cars in Duck Key ](https://www.expedia.co.uk/Thrifty-Car-Rental-Car-Rentals-In-Duck-Key.d184267-c45.Car-Rental-Guide-Suppliers) - [People Carrier Car Hire in Duck Key ](https://www.expedia.co.uk/Van-Car-Rentals-In-Duck-Key.d184267-tVan.Car-Rental-Guide-Class) - [Duck Key Holiday Rentals ](https://www.expedia.co.uk/Duck-Key-Holiday-Rentals.d184267.Travel-Guide-HolidayRentals) - [Key Colony Beach Holiday Rentals ](https://www.expedia.co.uk/Key-Colony-Beach-Holiday-Rentals.d121486.Travel-Guide-HolidayRentals) - [Things to do in Duck Key ](https://www.expedia.co.uk/Things-To-Do-In-Duck-Key.d184267.Travel-Guide-Activities) - Cities near Grassy Key - Places of interest [Marathon](https://expedia.co.uk/Marathon.dx2437) - [Everglades National Park ](https://expedia.co.uk/Everglades-National-Park-Florida.d54987.Attraction) - [Sombrero Beach ](https://expedia.co.uk/Sombrero-Beach-Marathon.d6069239.Attraction) - [Vaca Key ](https://expedia.co.uk/Vaca-Key-Marathon.d553248635976196298.Attraction) - [Curry Hammock State Park ](https://expedia.co.uk/Curry-Hammock-State-Park-Marathon.d6069251.Attraction) - [Crane Point Museum and Nature Center ](https://expedia.co.uk/Crane-Point-Museum-And-Nature-Center-Marathon.d6069259.Attraction) ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels when you book in the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. 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