Marathon is a 10-mile-long family-oriented island community located in the middle of the Keys island chain, to include Vaca Key, Fat Deer Key and Grassy Key. Visitors enjoy Marathon’s fishing heritage, an old-Keys lifestyle and seafaring traditions, which is a theme found in the area’s accommodations. Marathon Key has annual seafood festivals and waterside restaurants that harvest fresh fish, lobster and stone crab claws from local waters. Marathon Key vacations are going to be full of activities with spectacular sailing, fishing, world-class wreck and reef diving and snorkeling, in addition to the island’s impeccably maintained beaches, eco-attractions and marine-based educational programs. If you are looking for a Florida Keys vacation with some relaxation, then Marathon Key is a great place to visit on your travels through the Florida Keys.
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Marathon Key Weather – When to Go
The best time to visit Marathon Key is between March and May. The winter crowds will taper off, the hotel rates become reasonable and the weather is remarkably similar to winter’s blissful 70s and 80s. Speaking of winter – that season is the island’s busiest and priciest. The rainy and humid summer months see the fewest tourists but the best hotel rates. The trade-off might be worth it, but you’re still gambling against hurricane season (June to November).
Best Marathon Key Beaches
Bahia Honda State Park
Open all year round from 8:00 am until dusk, enjoy activities such as snorkeling and kayaking and rent a boat slip if needed. Beach equipment rentals and on-site snacks are available in addition to a gift shop. The park is also an excellent place to observe wading birds and shorebirds, while the Sand and Sea Nature Center introduces nature lovers to the island`s plants and animals.
Cabana Beach Club
Cabana Beach Club offers guests the best of the pool and the beach on Key Colony Beach. Well maintained the sandy beach offers shaded lounging under palm trees with easy access to calm Atlantic waters to play in. Complemented by the nearby 65` zero-edge heated and cooled pool you are sure to love the location and amenities!
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Sombrero Beach
Sombrero Beach is a beautiful park and sandy beach. Sombrero Beach has handicap accessibility. This sandy beach frames a shady park with picnic pavilions, volleyball courts, restrooms and showers. You can also see nesting turtles here.
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Inch Beach
A private, gated beach located in Key Colony Beach between 10th and 11th Street, Inch Beach is a pristine paradise with parking, bike racks, a tiki hut and freshwater for showering all on a sugar sand beach with crystal clear water.
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Coco Plum Beach
This beach is typically less crowded and provides a covered pavilion and restrooms. Coco Plum Beach is a dog-friendly beach. The waters are shallow, so great for swimming. This beautiful stretch of beach is perfect for a walk with stunning sunsets. Coco Plum Beach is ideal for windsurfing, and nesting turtles can be seen here.
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Best Marathon Key Restaurants
Sparky’s Landing $11 – 30
They combine culinary excellence with the Florida Keys on the water lifestyle to create the ultimate dining experience. Sparky’s is not another cookie cutter keys eatery – it’s Marathon’s best combination of great food and delicious cocktails that embraces both seafaring locals and vacationers alike. Sparky’s Landing was founded in February of 2006 and their focus is good times, fresh fish & refreshing cocktails. Sparky’s is located on the working charter boat fleet docks of the Key Colony Beach Marina. Telephone: 305-289-7445 Web: Sparky’s Landing
Herbie’s Bar & Chowder House $11 – 30
They capture the essences of “The Keys” flavors with innovative recipes… some from the “old days” and others created right here. They’ve taken the best of traditional Keys cuisine and put their own unique twist on them — recipes you are certain to love! Their kitchen prepares every dish from “scratch” meaning it’s fresh and as local and in season as possible. Herbie’s has been serving locals and tourists alike for 50 years. But, under it’s former ownership(s), this little Florida Keys shack has been operating since the 1940’s! Don’t let the outside fool you… This is the biggest little restaurant you will ever walk in to! Telephone: 305-743-6373 Web: Herbie’s Bar & Chowder House.
The Wreck & Galley Grill Sports Bar $11 – 30
With a sign inviting you to “Eat All You Can Snow Crabs” you know that you aren’t going to go hungry at the Wreck And Galley Grill And Sports Bar. This is a very relaxed place, and is a particular favorite with families who want to bring their kids to a place, where they are worried about them moving around a bit. Telephone: 305-743-8282 Web: The Wreck & Galley Grill Sports Bar
Hideaway Cafe $31 – 60
Hideaway Cafe is a double whammy for the foodies out there. Not only are the views out across the ocean a delight, but the portions are huge. The Rib Steak is really a meal for not just you, but all the family and the other diners too. Telephone: 305-289-1554 Web: Hideaway Cafe
Cabana Breezes
Back in the 1950’s the place was owned by the famous bandleader Guy Lombardo, and really the service and the quality of food hasn’t changed much since then. You can try Key West pink shrimp, pieces of tender conch, to beer battered fish. Look out for the daily happy hour and the nightly entertainment that runs Thursday to Sunday. Telephone: 305-743-4849 Web: Cabana Breezes
Best Marathon Key Bars
Keys Fisheries Bar
Their restaurant serves the freshest seafood cuisine available including their appetizers, entrees, and signature dishes in varieties that everyone can appreciate. Start with the Conch Fritters, move on to the Lobster Reuben and finish the meal with a fresh slice of Florida Keys Key Lime Pie. Or, select from one of the other wonderful fresh seafood creations on our menu. Best of all, everything on the menu they can happily prepare for take-out or to be packaged and shipped. Come down to Keys Fisheries and enjoy a cold beer or cocktail as the sun sets over the flat water of Florida Bay. Enjoy the best atmosphere that the Keys has to offer. Telephone: 305-743-4353 Web: Keys Fisheries Bar.
Burdines Waterfront ChikiTiki
Burdines has a chiki tiki bar. Tiki bars are always fun. This old style Florida beach bar serves up fish any way you want it. You can also order a Green Chile Cheeseburger, any way you want it. Burdines aims to please. Based on the location of this Florida beach bar it definitely attracts the locals and the fisher-people. Food is fresh!!! The locals have an expression. It is “the Keysi way”. The “Keysi” lifestyle. It is all about the Keys any way you use it. Relax and enjoy a “Keysi” kind of bar, a true Florida beach bar. Telephone: 305-743-9204 Web: Burdine’s Waterfront ChikiTiki
The Island Fish Company & Tiki Bar
Their spectacular sunset views and tropical waters will make your lunch, dinner, drinks and desserts that much more pleasurable. If you are looking to just relax and enjoy the scenery, pull up a bar stool to the longest tiki bar in the Florida Keys. The bartenders are sure to put a smile on your face when you sip on one of their frozen favorites or cold draft beer. Telephone: 305-743-6014 Web: The Island Fish Company & Tiki Bar.
Brass Monkey
The Brass Monkey is not like most of the bars in Marathon, as it is actually linked to a shopping center. Yeah, lets get drunk…come on wheres the nearest Walmart?? But if you go down to Kmart Plaza, you will find this bar and liquor store that has been around for ages, and is a favorite of the locals. Telephone: 305-743-4028 Web: Brass Monkey
JJ’s Doghouse
This bar is a nice detour from the dockside types of pubs you find in Marathon. It is just a friendly place hidden away behind a single door in the wall. Open from 7:00am until 4:00am, the Dog House offers pool, darts, live music and staff that seem happy to see new faces when you walk in. Telephone: 305-743-5919 Web: JJ’s Doghouse
The 10 Best Marathon Hotels
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Marathon seems like one of those places where you can settle in and really enjoy the slower pace of the Keys without all the crowds. I like that it still has that old Florida feel, especially with the fishing culture and local restaurants right on the water. The variety of beaches you mentioned is nice too, since it looks like there are options whether you want something more active or just a quiet place to relax. It also feels like a good middle spot if you’re exploring the Keys. Do you think it’s better to stay in Marathon for a few days, or use it as a base to see other areas nearby?
That’s a great way to think about it, because it works well both ways depending on your plans. Since Marathon sits right in the middle of the Keys, many visitors use it as a base for exploring places like Key West or Islamorada while still enjoying a quieter place to stay. At the same time, there’s enough here—between the beaches, fishing, and local dining—to fill a few relaxed days without needing to go far.
Marathon sounds like the perfect balance of laid-back Florida Keys charm and nonstop water adventure. I love how you highlighted everything from Bahia Honda State Park’s snorkeling to sunset cocktails at Keys Fisheries Bar. The mix of fishing heritage, eco-attractions, and fresh stone crab claws really gives it that authentic Old Keys feel. If someone is planning a week in Marathon, would you recommend staying closer to Sombrero Beach for easy beach access or near the marinas for fishing charters and waterfront dining?
For a full week in Marathon, the best location really depends on what kind of Florida Keys vacation you want. Staying near Sombrero Beach gives you easy access to one of the prettiest sandy beaches in the Middle Keys, plus calm swimming areas, sea turtle nesting sites, and beautiful sunrise walks along the Atlantic. It’s ideal for families and travelers who want daily beach time without driving far. On the other hand, lodging near the marinas and Key Colony Beach puts you right by deep-sea fishing charters, reef snorkeling trips, and waterfront restaurants like Sparky’s Landing and Island Fish Company. Many visitors who come for world-class sport fishing, wreck diving, and sunset tiki bar evenings prefer the marina area for convenience. Either way, Marathon delivers that relaxed Florida Keys lifestyle with turquoise water, fresh seafood, and easy access to both the Atlantic Ocean and Florida Bay.
This looks amazing! Do you know what the water temperature is this time of year in Marathon? Trying to figure out if it’s warm enough for swimming and snorkeling.
Great question — and yes, Marathon is warm enough for swimming almost year-round!
Right now, water temperatures in Marathon Key typically range from about 74°F to 78°F (23°C–26°C) depending on the week and weather patterns. Winter is the “coolest” season in the Keys, but the water rarely drops below the mid-70s, which means:
Perfect for snorkeling
Comfortable for swimming
Ideal for kayaking and paddleboarding
Great visibility around reefs and wrecks
If you prefer extra-warm water, the ocean starts heating back up quickly from March onward. By late spring and summer, temperatures usually climb into the 80°F–86°F range (27°C–30°C).
Marathon Key sounds like such a well-rounded spot in the Florida Keys. I really like how it seems to offer both relaxation and plenty of activities, especially with the beaches, snorkeling, and seafood scene. The mix of family-friendly areas and quieter beaches makes it feel very appealing for different types of travelers. This definitely feels like a destination that gets overlooked compared to Key West, but maybe that’s part of the charm.
That’s exactly what makes Marathon Key special. It delivers the classic Florida Keys atmosphere without the constant crowds, while still offering excellent beaches, water activities, and fresh local seafood. Many visitors are surprised by how much there is to do here, from eco-attractions to laid-back dining right on the water. It’s a great choice for travelers who want a more relaxed Keys experience but still enjoy variety and convenience.
Marathon Key sounds like the perfect mix of adventure and island charm! I love that it has that “Old Keys” feel with amazing local seafood and still offers so many outdoor activities — from snorkeling at Bahia Honda to sunset drinks at a tiki bar. It feels less crowded and more authentic than some of the busier Keys. The Hideaway Café and Sombrero Beach both sound like must-do spots! Would you say Marathon is a better base for exploring the rest of the Keys, or more of a destination to just stay and unwind for a few days?
That’s exactly what makes Marathon so special — it truly captures the laid-back, old-Florida Keys spirit while still offering plenty to do! I’d say it’s perfect for both. Marathon makes a great home base because it’s right in the middle of the island chain — easy day trips to Key West or Islamorada are just a short drive away. But it’s also wonderful as a standalone destination if you want to slow down, enjoy local dining, and spend your days snorkeling, kayaking, or relaxing on Sombrero Beach. Many visitors end up wishing they’d stayed longer — it’s that kind of place!
Marathon Key sounds like the perfect balance of adventure and relaxation — exactly what I look for in a Florida Keys getaway! I love that it still has that authentic, old-Keys charm with all the modern touches. Sombrero Beach and Coco Plum both sound amazing for a beach day, and the seafood spots like Sparky’s Landing and Keys Fisheries are definitely calling my name. For someone planning a few days there, would you recommend staying right in Marathon or nearby on one of the smaller Keys like Grassy or Duck Key for a quieter experience?
You’re absolutely right — Marathon really captures that classic Florida Keys vibe while offering plenty to see and do! For a first-time visit, I’d suggest staying right in Marathon since it’s the heart of the Middle Keys and makes it easy to access everything — beaches, dining, boating, and day trips to Bahia Honda or the Dolphin Research Center. That said, if you prefer something a bit quieter and more exclusive, Duck Key is a wonderful choice with resorts like Hawks Cay offering a laid-back, upscale experience just minutes away. Either way, you’ll be surrounded by turquoise water, friendly locals, and some of the freshest seafood you’ll ever taste!
Marathon Key sounds like the perfect mix of laid-back charm and fun activities. I love that it still holds on to its old-Keys lifestyle but also offers so much to do, from turtle nesting at Sombrero Beach to snorkeling at Bahia Honda. The seafood festivals and waterfront dining also sound amazing. If I’m planning just a couple of days there, which beach or activity would you say is the absolute must-do?
I’m so glad you enjoyed the guide! Marathon really does give you that classic Keys vibe while keeping things family-friendly and full of adventure. If you only have a couple of days, I’d recommend starting with Bahia Honda State Park—it’s one of the most beautiful beaches in all of the Keys, and you can easily spend hours snorkeling or kayaking there. Pair that with Sombrero Beach, especially if you’re visiting during turtle nesting season, and you’ll get the best mix of relaxation and wildlife. For dining, you can’t go wrong with fresh seafood at Sparky’s Landing. Are you more interested in beach time and nature, or would you like to mix in a little nightlife at one of the tiki bars too?