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) ![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) ## 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/4000000/3870000/3864000/3863945/60a631db_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Rainbow Bend Resort 57784 Overseas Hwy Marathon FL £163 9 Feb - 10 Feb 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 ... 8/10 Very Good! (845 reviews) the room was clean and neat but it was chilly. they could not do anything about that. we had a wonderful time. the staff was wonderful. Reviewed on 6 Feb 2026 [](https://expedia.co.uk/Hotel-Search?startDate=09%2F02%2F2026&endDate=10%2F02%2F2026&selected=3863945&PinnedHotelID=3863945&HadPinnedHotel=true®ionId=3000451823) ![Grassy Flats Resort & Beach Club](https://images.trvl-media.com/lodging/37000000/36890000/36881900/36881801/e7fc7008_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Grassy Flats Resort & Beach Club 58182 Overseas Hwy Marathon FL £311 8 Mar - 9 Mar 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! (389 reviews) Staff was very friendly and helpful. Nice room at a beautiful location. Really enjoyed the beach and pools. Reviewed on 7 Feb 2026 [](https://expedia.co.uk/Hotel-Search?startDate=08%2F03%2F2026&endDate=09%2F03%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 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! (547 reviews) Easy checkin online. Easy access to unit. Very clean. A lot of great amenities on the property that we didnt get to use due to weather. Reviewed on 30 Jan 2026 [Get rates](https://expedia.co.uk/Hotel-Search?startDate=21%2F02%2F2026&endDate=22%2F02%2F2026&selected=13278553&PinnedHotelID=13278553&HadPinnedHotel=true®ionId=3000451823) [](https://expedia.co.uk/Hotel-Search?startDate=21%2F02%2F2026&endDate=22%2F02%2F2026&selected=13278553&PinnedHotelID=13278553&HadPinnedHotel=true®ionId=3000451823) [See all 2,275 properties in Grassy Key](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.Hotels.DestinationExperience&startDate=08%2F02%2F2026&endDate=09%2F02%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/w1540h1080x190y0-767d5e53_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 ... 8.6/10 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-Ba.h102829071.Hotel-Information) ![Viamarhe Cabin-Private beach, Kayak, yard games](https://images.trvl-media.com/lodging/97000000/96140000/96135100/96135022/3eb0c6db_y.jpg?impolicy=resizecrop&rw=340&ch=150) ### Viamarhe Cabin-Private beach, Kayak, yard games Marathon FL Stay at this cabin in Marathon. Enjoy free Wi-Fi, laundry facilities and patios. Popular attractions Keys Cable Park and Crawl Key are located nearby. 8.8/10 Excellent! (16 reviews) Pros: - Location - it's super easy to do day trips to island hop from here - Unit is so thoughtfully furnished (kitchen items and being able to wash all swim things before heading home were super helpful) - Being right on the beach made for beautiful sunrises and we also took their kayaks out for ... Reviewed on 9 Jan 2026 [](https://expedia.co.uk/Marathon-Hotels-Viamarhe-Cabin-Private-Beach.h96135022.Hotel-Information) ![Wide Horizon oceanfront. 4 bedroom, 4 ½ bath, kayaks, pool + observation deck.](https://images.trvl-media.com/lodging/94000000/93400000/93394200/93394137/2f0a7eda_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! (35 reviews) Our family had a wonderful trip. This place is beautiful! The pool, hot tub and entertainment areas are great. We all slept really well. If you’re a person who likes to sleep in, bring an eye mask, the sunrise will definitely wake you up. We traveled with a 2.5 and six month old. Our toddler had ... Reviewed on 1 Feb 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=2026-02-07&endDate=2026-02-08)[7 Feb - 8 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-02-07&endDate=2026-02-08) [Tomorrow night ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-02-08&endDate=2026-02-09)[8 Feb - 9 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=2026-02-08&endDate=2026-02-09) [Next weekend ](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=13%2F02%2F2026&endDate=15%2F02%2F2026)[13 Feb - 15 Feb](https://expedia.co.uk/Hotel-Search?rfrrid=TG.LP.CheckPrices.DestinationExperience&adults=2&openPlayBack=true®ionId=3000451823&startDate=13%2F02%2F2026&endDate=15%2F02%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 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 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 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) ![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 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) ![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 beautiful beaches or discover the area's beautiful sunsets. [](https://expedia.co.uk/Vaca-Key-Marathon.d553248635976196298.Attraction) ![Coco Plum Beach, Florida Keys](https://images.trvl-media.com/place/553248635983989276/54e88581-0795-40c6-ae41-f5efd4972ee3.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Coco Plum Beach Why not spend a lazy afternoon at Coco Plum Beach during your trip to Marathon? Discover the area's beautiful sunsets or seek out its jogging trails. [](https://expedia.co.uk/Coco-Plum-Beach-Marathon.d553248635983989276.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 £27 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 £88 per adult **100%** of travellers recommend [](https://expedia.co.uk/things-to-do/day-sailing-adventure-in-the-florida-marine-sanctuary.a49731974.activity-details) ![Sister snorkelers :)](https://mediaim.expedia.com/localexpert/50837984/58143775-2e63-4153-b9f9-bf99bea3d9f1.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Marathon: COMBO- Snorkel & Sandbar (Sombrero Reef) £112 per adult [](https://expedia.co.uk/things-to-do/marathon-combo-snorkel-sandbar-sombrero-reef.a50837984.activity-details) ![Marathon: Private Cable or Cable Kiteboarding Session](https://mediaim.expedia.com/localexpert/49206825/570dd764-a277-46ff-8f12-e8080eb09f71.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Marathon: Private Cable or Cable Kiteboarding Session £130 per traveller [](https://expedia.co.uk/things-to-do/marathon-private-cable-or-cable-kiteboarding-session.a49206825.activity-details) ![Marathon: Intro to Foilboarding Experience](https://mediaim.expedia.com/localexpert/49182516/cef4d5d4-fc87-4a8b-a480-a9d20f217e37.jpg?impolicy=fcrop&w=900&h=506&q=mediumHigh) #### Marathon: Intro to Foilboarding Experience £156 per traveller [](https://expedia.co.uk/things-to-do/marathon-intro-to-foilboarding-experience.a49182516.activity-details) ![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) [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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[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) - [Curry Hammock State Park ](https://expedia.co.uk/Curry-Hammock-State-Park-Marathon.d6069251.Attraction) - [Vaca Key ](https://expedia.co.uk/Vaca-Key-Marathon.d553248635976196298.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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