Seven Mile Bridge
There are two bridges in this location. The modern bridge is open to vehicular traffic; the older one only to pedestrians and cyclists. The older bridge, originally known as the Knights Key-Pigeon Key-Moser Channel-Pacet Channel Bridge, was constructed from 1909 to 1912 under the direction of Henry Flagler and Clarence S. Coe as part of the Florida East Coast Railway's Key West Extension, also known as the Overseas Railroad.
Dolphin Research Center (Grassy Key)
The Dolphin Research Center is a dolphinarium on Grassy Key, Florida. The 90,000-square-foot series of saltwater lagoons carved out of the shoreline is home to a family of dolphins and California sea lions. It features experiences where visitors can learn about marine mammals and the environment and also swim with, hand-signal, or enjoy other interactive programs with the dolphins.
Sombrero Beach
Sombrero Beach is a beautiful park and sandy beach. In 2001 the City redeveloped Sombrero Beach to include total handicap accessibility. A lovely sandy beach on the Atlantic Ocean frames a shady park with picnic pavilions, volleyball courts, restrooms and showers.

Sombrero Beach is a turtle nesting beach. From April through October it is not unusual to have Loggerhead Turtles (primarily) coming on to the beach at night to lay their eggs. During active turtle nesting season the City limits human activities in the vicinity of active turtle nest establishments. Turtle nest areas typically represents less than 10% of the available beach area. The remainder of the beach is open for our visitors and residents to enjoy. The City regularly surveys the beach for new turtle nesting. If you are interested in assisting the City in preserving the turtle population as a turtle surveyor, please do not hesitate to contact the City. F.D.E.P. holds classes in February or March every year to be a state certified surveyor. The City then schedules all of the surveyors for their day to walk the beach. Walking the beach first thing in the morning looking for turtle nests is an awesome experience.
Florida Keys Aquarium Encounters
CORAL REEF SNORKEL ENCOUNTER ,STINGRAY COVE ENCOUNTER or BIG SHARK BAY ENCOUNTER.Looking for things to do in Key Largo on your Florida vacation? Interact with stingrays right in the water, and even get the chance to have a trained stingray rest itself on our your lap on our underwater-seated stingray bench for a uniquely personal stingray encounter!
Sombrero Reef
Sombrero Reef is one of the largest and surely the most magnificent coral reefs in the Middle Keys, home to some of the best spur and groove reef formations in all the Keys. The amount of coral is breath-taking. As soon as you descend, gorgonians, brain, finger and lettuce corals can be seen. Schools of colorful tropicals, southern stingrays and nurse sharks make their home on this reef. Large barracuda hang out by the lighthouse structure. The coral limestone has an "Arch" which is large enough to swim through.
Fishing Charters & Tours
With a name worthy of the area’s unbeatable angling, Marathon fishing has a way of always making you want to stay out longer, and fishing can be as productive in 10 feet of water as it can be in 1,000. The historic Bahia Honda and Seven Mile bridges are often named by Tarpon addicts as having some of the best fishing in the keys, and fishing in Marathon certainly isn’t limited to dropping lines under bridges. The elaborate network of patch reefs and reef systems means that if you’re fishing in the Florida keys you’re almost guaranteed to land something special. Year-round populations of Spanish Mackerel, Barracuda, Snapper, and Grouper, are joined by as many visitors below the water as above, and if you head out past the deep sea wrecks and into the blue waters, Marathon charter fishing can see you battling anything from Wahoo and Mahi to monster Tuna, massive Marlin, and even Swordfish. So let the crowds all squash onto that boat to Key West, you have everything you need right here, and from fly fishing fights to usurp the Silver King to deep water adventures plunging lines a quarter-mile into the abyss, it’s guaranteed to be marathon!
Scuba & Snorkeling
Marathon welcomes all divers, from a first time breathing underwater to professionals that have mastered the art. With our prime location in the middle of the beautiful Florida Keys, Marathon hosts a large section of the 3rd largest barrier reef in the world. Our Marathon boats have over 30 different dive sites to choose from. So, why dive anywhere else? Have family members that don't want to dive, but like to fish? Whether you have a week to spend on vacation, or only a few hours, we can entertain you with lifelong, funfilled memories. Marathon is quiet, uncrowded, and great for families.
Curry Hammock State Park
Curry Hammock State Park is a Florida State Park, located along both sides of US 1, starting at mile marker 56.2 on Crawl Key in the Florida Keys.

There are a multitude of activities available at Curry Hammock State Park. Kayaking, Fishing, Beach going are all there. You can also camp and bring your RV to the park to stay the night
Kayaking & Canoeing
There are literally hundreds of places to launch a kayak, a canoe or a paddle board in the Florida Keys, whether your intend to explore the ocean, the shallow waters of Florida Bay or the many hidden creeks and channels unique to these islands.

On many stretches of the Overseas Highway (US 1), you can just pull off to the side of the road.
Crane Point Museum & Nature Center marathon
Crane Point Museum, Nature Center and Historic Site is a non-profit natural history museum and nature center located in the City of Marathon on Key Vaca, in the heart of the Florida Keys in Monroe County, Florida, United States.

Crane Point features several facilities:

Museum of Natural History of the Florida Keys - Exhibits focus on the natural and cultural history of the Keys area, including Calusa Indians, Spanish explorers and other Keys pioneers, pirates, a diorama of a coral reef, butterflies, tree snails, sea turtles, shells, Key deer and local tropical fish. The museum was established in 1990. The museum is part of the Smithsonian Traveling Exhibit, from the Smithsonian Institution's National Museum of Natural History, that contains depictions of Keys heritage and landscapes.

Florida Keys Children's Museum - features two saltwater lagoons and many marine touch tanks which contain native Keys invertebrates and fish, including a nurse shark, as well as an interactive pirate play area.

George Adderley House - a historic house museum that was built by George Adderley, a Bahamian pioneer, in 1903 that still stands on Crane Point's property. The exterior of the house was constructed with Tabby, a concrete-like material made of burned conch and other shells and sand.

Marathon Wild Bird Center - a rehabilitation center for injured and orphaned wild birds. Opened in 1998, the center also offers education programs and research projects. Some recovering birds can be viewed in the outdoor flight cage.

Nature trails
Local weather Florida Keys
Marathon Info
  • Dolphin Research Center: MM 59 Bayside 58901 Ovewrseas Hwy, Grassy Key, Florida 33050-6019. Reservations: 305-289-0002 or O: 305-289-1121. Open 9 to 4:30 everyday.Visit or swim with the Dolphins on Grassy Key. Only 5 Miles north of cocoplum.
  • Marathon Aqua Ranch and Symbiologics: MM 59 Oceanside at 59300 Overseas Hwy, Grassy Key, Florida 33050 T: 305-743-6135. Come visit today. Only 5 miles north of Cocoplum. You can feed the fish, snorkle with the fish or attenda children's fishing workshop.
  • Pigeon Key: A Historic pioneer village. Only Seven (7) Miles South on an island in the middle of the Seven Mile Bridge. Great Safe place to go Roller Blading or Biking on the old bridge. See schools of tarpon and giant rays swimming below. Awesome sunsets from here. One of my favorite places to visit with my family in Marathon. No cars allowed on the old bridge. VERY Important tip! The parking lot for the old seven mile bridge is a very small lot just before the new seven mile bridge. If you miss it it's a 16 mile round trip mistake. Just enjoy the seven mile bridge going south and then back north and don't miss it again.
  • Sombrero Country Club:  GOLF (Mile Marker 50) - (305) 743-2551 - Sombrero Country Club - Beautiful 18 hold golf course.
  • Parasail Marathon - Captain Micky 305-731-3150 (Mile Marker 49 Bayside) Located next to Keys Fisheries Marina and Market. Certified by PAPO. Fun, easy, and safe parasiling gives you the thrills of a power boat ride, parachuting and gliding. Romatic gulf sunset flights with private boat and crew avaialable.
  • Bahia Honda State Park: Rated the Best Beach in the Keys only, 14 Miles South on US-1.
  • Marathon's Crane Point Hammock Museum: This unique 63-acre site is home to the Museum of Natural History, Children's Museum, Adderley Town Historic Site, Marathon Wild Bird Center and an extensive nature trail system that leads through a dense tropical forest to a spectacular view of Florida Bay. Just 4 miles away at mile marker 50.4. Great place to take the Kids on an over cast day.
  • Community Theater: Your ticket to great live theatre in the Middle Keys: since 1944!
  • Party, Bar Hopping, Tour Bus "UKUONKANUT" 305-432-3202 Must be 21 to ride the bus. Bar hop from hotel to Key West and back.

On the way down from Mainland:

  • "The 100 Mile Dash To Paradise" - a mile-by-mile adventure guide to some of the best bars, joints, tropical dives, tiki bars and hang-outs in The Florida Keys. Starting from the most northern point all the way down to Key West at Mile Marker "0".
  • The Theater of the Sea: (Mile Marker 84 Oceanside) Dolphin and Sea Lion shows daily! Stop here if you are early for our 3pm check in time.
  • Everglades National Park: Spanning the southern tip of the Florida peninsula and most of Florida Bay, Everglades National Park is the only subtropical preserve in North America. Go West when you reach Florida City (just before entering the Keys). Also a good thing to do if you are early for our 3pm check in time. This tour should take about 4-5 hours to do everything.
  • World Wide Sportsman-Outdoor World: Mile Marker 83 Bayside - 81576 Overseas Hwy, Islamorada FL 33036, 305-664-4615: The world's leading supplier of premium outdoor gear. Also a great place to have lunch on a dock out back atThe Islamorada Fish Company
Marinas and Boat ramps
  • Florida Keys Dive Sites
  • Dive Shop Abyss Dive Shop: Only 1 mile away behind the Holiday Inn.
  • Captain Hooks Marina & Dive Center(MM53) Less than 2 miles from Cocoplum - Also Best Bait Shop. (305) 743-2444
  • A Deep Blue Dive400 Sadowski Causway, Key Colony Beach, FL 33051 , 800-978-3483 or 305-743-2421 WELCOME to the fabulous Florida Keys, with America's only living coral reef. The Middle Florida Keys is one of the worlds most versatile and breathtaking dive destinations. You will be in awe of the wondrous sights below. So much so, you will want to stay down forever. A Deep Blue Dive Center, located in the city of Key Colony Beach, invites you and your family to dive or snorkel off "Turtle", a roomy 34 ft., six-passenger-maximum dive vessel equipped with a fresh water shower. Keep your eyes open for a dolphin or turtle on the 30 minute ride back to the dock. Scuba Instruction, spearfishing, airfiills, kayalk rentals and lobstering. We have a complete line of SCUBA and snorkel gear for sale or rent. Or just stop by to get info on where the locals go. Dive and Snorkle Trips.
  • Discount Eco-Divers(Mile Marker 52) (305) 743-2400 - 10800 Overseas Highway, Marathon, Florida, 33050
  • Tilden's Scuba Center(Mile Marker 49.5) (305) 743-7255 or 8888-728-2235 Address 4650 Overseas Highway MM49.5, Florida 30050. Courtesy Van available. Full Service Dive Facility Rents snorkle gear (masks, snorkle and fins).
  • Lady Catherine ChartersCapt. Jim McKoy 305-743-5544 or Cell 305-240-4030 Diving and Snorkling charters Or Fishing Charters
  • Spirit Power Catamaran: Equipment & Floats $26.00. For the BEST SNORKELING TRIP in the Keys! Groups, Parties or Weddings... How about a private charter for up to 40 people?! T: (305) 289-0614
  • The StarFish Snorkel Boat (Mile Marker 47.5) (305) 743-8255 - Bayside, Next to 7 Mile Grill
  • Florida Keys Sailing305-289-9519 Charters, Lessons, and day sails.
  • Marathon Kayak guided tours, instruction and rentals and sales 305-743-0561