Discover Marathon’s Underwater Treasures
In the heart of the Florida Keys, Marathon is a true gateway to some of the most beautiful snorkeling in the region. Crystal-clear waters, thriving coral reefs, and an abundance of tropical fish make this area a dream destination for anyone who loves life under the surface. From family-friendly shallows to vibrant offshore reefs, Marathon offers something for snorkelers of every experience level.
Where to Snorkel Around Marathon
Sombrero Reef
Perhaps the most famous reef near Marathon, Sombrero Reef stretches across 30 acres and is home to a kaleidoscope of life. Schools of colorful fish, intricate coral formations, rays, and the occasional sea turtle can all be found here. It’s a must-visit for anyone serious about exploring the Keys’ reefs.
Coffins Patch
This patch reef is well known among locals for its variety. Shallow areas are ideal for beginners or those looking for calmer waters, while deeper sections showcase dramatic sponges and coral structures. It’s a place where every snorkeler can find something to enjoy.
Bahia Honda State Park
Just a short trip from Marathon, Bahia Honda combines beautiful beaches with accessible snorkeling. Shallow waters near the shore make it especially appealing for families, but you’ll still find plenty of marine life, from schools of small reef fish to the occasional ray gliding past.
Why These Spots Stand Out
Snorkeling near Marathon is about more than just the reefs themselves. This section of the Florida Keys is part of the Florida Keys National Marine Sanctuary, which means the ecosystems here are carefully protected. As a result, visitors are treated to thriving coral gardens and waters full of life. The accessibility is another highlight—whether you’re looking for a quick swim off the beach or a more immersive reef experience by boat, you’ll find options that suit your pace.
Experience Snorkeling with SeaEO
At SeaEO, we make it easy to experience these incredible spots the best way possible: by private charter. Our snorkeling cruises are fully customizable, designed to match your group’s pace and preferences. Whether you want a laid-back morning exploring shallow reefs or a more adventurous outing to offshore sites, we handle all the details.
When you step aboard with us, you can expect:
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Privacy and comfort — The boat is yours, with room for up to 13 guests.
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Expert guidance — Our captains know the reefs inside and out, including how tides, currents, and conditions affect visibility.
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A stress-free day — We provide the gear, handle the navigation, and take care of the logistics so you can simply enjoy the water.
Many of our guests tell us that snorkeling here is the highlight of their trip to the Keys, and it’s easy to see why. Few places combine accessibility, beauty, and variety quite like Marathon.
Plan Your Snorkeling Adventure
Marathon is more than just a stop in the middle of the Keys, it’s a snorkeling destination! Between Sombrero Reef, Coffins Patch, and Bahia Honda, you’ll find some of the most memorable underwater experiences Florida has to offer. With SeaEO, those moments become effortless.
If you’re planning a trip to the Keys, we’d love to help you see why Marathon’s waters are so unforgettable. Visit sea-eo.com to learn more and start planning your snorkeling adventure.