The Florida Keys were made for the water. It’s that simple. With the warm turquoise Gulf of Mexico on one side, the deep blue Atlantic on the other, and miles of mangrove islands, coral reefs, sandbars, and open flats in between, Marathon sits at the center of one of the most incredible boating and paddling playgrounds in the world.
Whether you’re an experienced captain looking to explore the backcountry, a first-time kayaker who wants to paddle through mangrove tunnels, a family looking for a laid-back pontoon day on the sandbar, or a thrill-seeker ready to rip across the waves on a jet ski, Marathon has you covered. And when you stay at Blackfin Resort & Marina, you’re literally steps from the water. The resort’s private marina, boat ramp, and Gulf-side location put you in the perfect position to launch your adventure without driving anywhere.
Here’s your complete guide to boating, kayaking, and every other way to get on the water in Marathon, FL.
Blackfin Resort & Marina: Your Launch Point for Everything
One of the biggest advantages of staying at Blackfin Resort & Marina is that you don’t need to go anywhere to get on the water. The resort’s private marina is located right on Florida Bay, on the Gulf side of Marathon, giving you direct access to some of the best boating waters in the Keys.
Marina Features
- 27 boat slips accommodating vessels up to 40 feet
- Boat ramp for trailered boats — launch your own vessel right at the resort
- 30-amp electric hookups, fresh water, Wi-Fi, and pumpout service at the docks
- Approach depth of 8 feet and dockside depth of 10 feet
- Daily, weekly, and monthly slip rentals available
- Restrooms, showers, and laundry facilities for marina guests
- On-site dive shop for snorkeling and diving gear
- Direct Gulf access to Florida Bay and the Atlantic Ocean beyond
Whether you’re trailering your own boat to Marathon, arriving by water, or planning to rent a boat during your stay, Blackfin’s marina is a convenient, well-equipped home base. The friendly marina staff can point you to the best fishing spots, recommend routes, and help you plan your time on the water.
[Image: Boats at Blackfin Marina with sunset. Alt text: “Private marina at Blackfin Resort in Marathon FL with boats docked at sunset on Florida Bay”]
Boat Rentals in Marathon: Be Your Own Captain
Don’t own a boat? No problem. Marathon has a thriving boat rental scene with options for every budget and experience level. From small center consoles perfect for a fishing trip, to spacious pontoon boats ideal for a family sandbar day, to fully equipped sportfishing vessels ready for an offshore run, you can find exactly what you need.
Types of Boats Available
- Pontoon boats — The most popular rental for families and groups. Spacious, stable, and perfect for sandbar hopping, snorkeling in shallow water, and cruising at a relaxed pace. Most seat 8–10 people and come with shade canopies
- Center console boats — The go-to choice for fishing, reef snorkeling, and exploring further offshore. Ranging from 19 to 28 feet, these boats are equipped with GPS, fish finders, and livewells. Great for reaching Sombrero Reef or fishing the bridge channels
- Deck boats — A versatile option that splits the difference between pontoons and center consoles. Good for both leisure cruising and light fishing
- Tiki boats / Tritoons — Several Marathon rental companies now offer tiki-style tritoon boats — essentially floating tiki bars. These are a blast for group outings and sandbar parties
- Sportfishing boats — For serious anglers, larger sportfishing vessels with outriggers, fighting chairs, and offshore capabilities are available through local rental companies and charter operations
Popular Rental Companies
Marathon has several reputable boat rental outfitters. Here are some of the most popular options:
- Captain Pip’s Marina & Hideaway — A family-run operation near MM 47.5 offering boats from 19 to 28 feet, plus kayak and paddleboard rentals. Their knowledgeable team provides local tips and thorough orientation
- Captain Hook’s Marina & Dive Center — Located at MM 53 on Vaca Cut, offering a fleet of center consoles and pontoons along with dive and snorkel excursions
- Marathon Pontoon Rental — Specializes in premium pontoon boats with daily, weekly, and monthly rates. Pet-friendly boats available
- Paradise Watersports Rentals — Offers pontoons, center consoles, jet skis, kayaks, and paddleboards from their Marathon location
- Ocean View Marina — Clean, reliable boats for daily and weekly rental, equipped with stereos, coolers, and Bimini tops
What You Need to Know Before Renting
- Boater safety certification: Florida requires anyone born on or after January 1, 1988 to have a Boating Safety Education ID Card (or state equivalent) to operate a motorized vessel of 10 horsepower or more. Out-of-state visitors can take a quick online course to get a temporary 90-day certificate
- Pricing: Expect to pay roughly $250–$500 per day for a self-operated rental depending on boat size. Pontoons tend to be on the lower end, while larger center consoles run higher. Multi-day rentals typically come with discounts
- Deposits: Most companies require a refundable security deposit (often $500) or offer a non-refundable damage waiver option
- Safety gear: All rental boats come equipped with U.S. Coast Guard-approved life jackets and required safety equipment. Children under 6 must wear a life jacket while the vessel is underway
- Navigation: Marathon’s waters include shallow flats, marked channels, and coral areas. Always follow channel markers, watch your depth, and respect no-wake zones. Rental companies provide thorough orientations and recommended routes
Kayaking in Marathon: Mangroves, Manatees & More
If you want to experience the Florida Keys at its most peaceful and intimate, kayaking is the way to do it. A kayak takes you places that motorboats can’t go — into narrow mangrove tunnels, across shallow seagrass flats, and right up alongside dolphins, sea turtles, and manatees in their natural habitat.
Best Kayaking Spots in Marathon
Boot Key Mangrove Tunnels: This is the marquee kayaking experience in Marathon. The Boot Key mangrove trail is considered one of the best mangrove tunnel tours in the Florida Keys, winding through the tidal channels and lagoons of largely uninhabited Boot Key. You’ll paddle through narrow passageways canopied by red mangrove trees, past isolated lagoons, and into hidden waterways that feel a world away from the highway. Along the way, you’re likely to spot manatees, nurse sharks, stingrays, sea turtles, snook, mangrove snapper, and a dazzling variety of tropical birds including great blue herons, white egrets, and pelicans. The calm, protected water makes it accessible for beginners and families with children as young as five.
Curry Hammock State Park: Located just a few miles east of Marathon at MM 56, Curry Hammock is a gorgeous launch point for kayaking and paddleboarding. The park offers calm, shallow waters perfect for beginners, with mangrove-lined shorelines and seagrass beds teeming with marine life. Kayak rentals are available at the park, and you can paddle at your own pace to explore the surrounding flats and small islands. A nearby sandbar is a popular destination for paddlers looking to take a break and swim.
Sister Creek: Another popular launch point in Marathon, Sister Creek takes you into the backcountry waterways of Boot Key past moored sailboats, through mangrove tunnels, and over shallow lagoons. You can make it a quick two-hour paddle or extend the trip around Boot Key’s perimeter for a longer adventure.
Blackfin’s Shoreline: You don’t even need to leave the resort to paddle. Blackfin Resort offers kayak access right from its waterfront, allowing you to explore the Gulf-side shoreline, paddle among the mangroves, and watch the sunset from the water without driving anywhere.
[Image: Kayakers paddling through mangrove tunnels. Alt text: “Kayaking through a mangrove tunnel in Marathon Florida Keys with clear turquoise water”]
Guided Kayak Tours
If you’d rather have an expert guide lead the way, several Marathon outfitters offer guided eco-tours that combine paddling with wildlife education and local knowledge:
- Marathon Kayak — Offers guided eco-tours through the Boot Key mangroves, including sunrise, sunset, and manatee-focused tours. Their comfortable sit-on-top kayaks are easy for first-timers, and guides share expert knowledge about the local ecosystem and wildlife
- Florida Keys Kayak and Paddleboard — Features the popular Mangroves & Manatees eco-tour (around $78/person), sunset kayak tours ($50/person), night eco-tours, and island-hopping rookery tours. They also offer hourly rentals at Sombrero Beach and delivery to local resorts
- Keys Kayak LLC — Located on the Overseas Highway in Marathon, offering guided tours and rentals with delivery service. Their staff will meet you at the launch point with all gear set up and ready to go
- Dolphin Bay Watersports — Rents single and tandem kayaks for self-guided adventures along the Marathon shoreline, with interactive maps showing routes to waterfront restaurants you can paddle to
Kayaking Tips for Beginners
- Wear sunscreen, a hat, and polarized sunglasses — the sun reflects off the water intensely
- Bring a dry bag for your phone, keys, and wallet
- Paddle early morning or late afternoon for the best wildlife sightings and cooler temperatures
- Check tides before you go — some mangrove passages are easier to navigate at higher tides
- Stay in your kayak when you see manatees — observe from a respectful distance, as they’re a protected species
- Water shoes are highly recommended for getting in and out of kayaks at launch points
Stand-Up Paddleboarding (SUP)
Paddleboarding has exploded in popularity in the Florida Keys, and Marathon’s calm, clear waters make it an ideal place to try it — even if you’ve never been on a board before. The shallow flats on the Gulf side offer glassy conditions most mornings, and the water is so clear you can watch fish, stingrays, and sea turtles glide beneath your feet as you paddle.
SUP rentals are available from most of the kayak outfitters listed above, with hourly rates starting around $25–50 at Sombrero Beach and daily rentals in the $50–70 range. Several companies also offer guided SUP eco-tours through the mangroves for paddlers who want a more structured experience.
Best spots for paddleboarding: Sombrero Beach (calm morning conditions, easy entry), the Gulf-side flats near Blackfin Resort, and Curry Hammock State Park.
Jet Ski Rentals & Tours
For pure adrenaline on the water, jet ski rentals are hard to beat. Marathon’s warm, open waters are perfect for ripping across the waves, and several companies offer both self-guided rentals and guided jet ski tours that take you past mangrove islands, sandbars, and scenic waterways.
Guided tours are a great option because the guides know the best routes, keep you in safe water, and point out wildlife and landmarks along the way. Prices typically start around $145 for a rental. Most operators are located along the Overseas Highway and offer easy access to the open water.
Best Places to Explore by Boat from Marathon
Once you’re on the water, Marathon opens up in ways you simply can’t experience from land. Here are the top destinations to explore by boat:
Sombrero Reef: One of the largest and most spectacular coral reefs in the Florida Keys, Sombrero Reef is a snorkeler’s paradise located about four miles offshore. The reef is part of the Florida Keys National Marine Sanctuary and features vibrant coral formations, tropical fish of every color, nurse sharks, sea turtles, and eagle rays. The 142-foot Sombrero Key Lighthouse marks the reef and makes it easy to find. This is a must-visit for anyone with a boat in Marathon.
Related: For a complete guide to the reef, check out Snorkeling Sombrero Reef: Your Guide to Marathon’s Underwater Paradise
Marathon Sandbars: Several beautiful sandbars near Marathon emerge at low tide, creating shallow, crystal-clear pools perfect for wading, swimming, and anchoring up for the day. The sandbar near Curry Hammock State Park is a local favorite. Bring a cooler, some snorkeling gear, and a floating mat, and you’ve got yourself a perfect Keys afternoon.
Seven Mile Bridge by Water: Seeing Seven Mile Bridge from the water gives you a completely different perspective on this iconic structure. Boat under the bridge arches, fish around the pilings in Moser Channel, and watch the sun set behind the bridge from the Gulf side. During tarpon season (April–June), the deep water beneath the bridge is one of the most legendary tarpon fishing spots in the world.
Related: Learn more in our guide to Seven Mile Bridge: The Ultimate Guide to Marathon’s Most Iconic Landmark
Pigeon Key: This tiny historic island beneath the Old Seven Mile Bridge is accessible by boat and makes for a great anchorage. Explore the preserved early-1900s buildings, learn about Flagler’s railroad construction, and enjoy the secluded island atmosphere.
Bahia Honda State Park: Just across the Seven Mile Bridge, Bahia Honda is one of the most beautiful state parks in Florida. Arrive by boat and you’ll have access to pristine beaches, excellent snorkeling, and some of the clearest water in the Keys. It’s a perfect day-trip destination from Blackfin Marina.
Waterfront Restaurants by Boat: One of the great joys of boating in Marathon is pulling up to a waterfront restaurant and docking for lunch. Several restaurants have dockage for visiting boats, including Porky’s Bayside, Burdine’s Waterfront, and Keys Fisheries. There’s nothing quite like arriving for a lobster Reuben by boat.
Related: See our complete Where to Eat in Marathon, FL: The Complete Restaurant Guide for all the best dining options.
[Image: Boat anchored at a Marathon sandbar with clear turquoise water. Alt text: “Boat anchored at a shallow sandbar near Marathon Florida Keys with crystal clear water”]
Fishing from Blackfin Marina
Marathon is known as the heart of the sportfishing capital of the world, and Blackfin Marina puts you right in the middle of the action. Whether you rent a boat, bring your own, or book a charter, the fishing opportunities are world-class:
- Flats fishing — Target bonefish, permit, and tarpon on the shallow Gulf-side flats accessible directly from the marina
- Bridge fishing — The Seven Mile Bridge pilings hold tarpon, snapper, grouper, permit, and more
- Reef fishing — Head offshore to Sombrero Reef and surrounding waters for snapper, grouper, hogfish, and more
- Offshore / deep sea — Run to the Gulf Stream for mahi-mahi, wahoo, sailfish, tuna, and marlin
- Backcountry fishing — Explore the mangrove-lined channels and flats for snook, redfish, and sea trout
Related: For a deep dive into the best fishing in Marathon, read our guide to the Top Fishing Spots Near Blackfin Resort in Marathon, FL
Captained Charters: Let Someone Else Drive
If you’d rather sit back, relax, and let an experienced captain handle everything, Marathon offers a huge selection of captained charter options:
- Fishing charters — Half-day and full-day trips targeting everything from backcountry species to offshore pelagics. Captains provide all gear, bait, licenses, and local expertise
- Snorkel trips — Guided trips to Sombrero Reef and other snorkeling destinations with all equipment provided
- Sunset cruises — Nothing beats watching the sun go down over the Gulf from a boat. Several operators offer cocktail-style sunset cruises from Marathon marinas
- Island-hopping tours — Explore uninhabited keys, sandbars, and secluded beaches with a local captain who knows all the hidden gems
- Private charters — Customize your day on the water with a private boat and captain. Perfect for families, couples, and special occasions
Captained trips typically run $450–$900 for a half day and $900–$1,800+ for a full day depending on the boat and itinerary. Tips of 15–20% are customary for fishing and sightseeing charters.
Best Time of Year for Boating & Kayaking in Marathon
Marathon’s waters are boatable year-round thanks to the subtropical climate, but each season offers a slightly different experience:
- Winter (December–February): Cooler, drier weather with comfortable paddling conditions. Slightly lower water temperatures but great visibility. Peak tourist season, so book rentals early
- Spring (March–May): Ideal conditions — warm water, calm winds, and the start of tarpon season. This is widely considered the best time for boating and fishing in the Keys
- Summer (June–August): Warmest water temperatures and longest days. Afternoon thunderstorms are common, so plan to be on the water early. Lobster mini-season (late July) is a major event for divers and boaters
- Fall (September–November): Fewer crowds and lower prices. Hurricane season runs through November, so watch the forecasts. October brings the start of stone crab season and some excellent fishing
Related: Read our seasonal travel guide: Florida Keys in Spring: Why March–May Is the Best Time to Visit
Boating Safety Tips for the Florida Keys
- Always check the weather forecast before heading out. Conditions in the Keys can change quickly, especially in summer
- Follow channel markers closely — The waters around Marathon include shallow flats, coral heads, and seagrass beds that can ground an unfamiliar boater
- Respect manatee zones and no-wake areas. Manatees are a protected species, and slow-speed zones are strictly enforced
- Wear sun protection. The sun on the water is intense. Sunscreen, hats, UV shirts, and plenty of water are essential
- File a float plan. Let someone know where you’re going and when you expect to return, especially for longer trips
- Carry a VHF radio or charged phone. Cell service can be spotty on the water. A VHF radio is the most reliable way to call for help
- Know the tides. Tidal swings of about two feet can make the difference between a passable channel and a grounding. Check tide charts before planning your route
Your Water Adventure Starts at Blackfin
When you stay at Blackfin Resort & Marina, the water is your backyard. Wake up, grab a coffee, and walk down to the marina to launch your boat. Take a kayak out for a sunrise paddle along the Gulf shore. Spend the afternoon snorkeling Sombrero Reef, then come back and watch the sunset from the resort’s private beach with a cold drink from the Hurricane Grille.
With 27 boat slips, a boat ramp, an on-site dive shop, kayak access, and a team that knows these waters inside and out, Blackfin is built for people who want to spend their vacation on the water. It’s not just a place to sleep between adventures — it’s where the adventure begins.
Ready to get on the water? Book your stay at Blackfin Resort & Marina and start planning your Marathon boating adventure today.