Discover the rich tapestry of experiences Marathon has to offer with SeaEO Nautical Ventures. Our luxury adventure boats are not just vessels, but platforms for endless oceanic possibilities. From snorkeling at vibrant reefs to lounging at pristine sandbars along the Lower Keys, we customize every excursion to meet your wildest expectations. As you bask in sumptuous comfort, we create your perfect day on the water, limited only by your imagination.







On-the-Water in Marathon
Marathon, a gem in the string of islands making up the Florida Keys, offers an array of water-based activities for every type of ocean lover. Known for its turquoise waters and abundant marine ecosystems, the area serves as a gateway to both adventure and relaxation. Here, you can explore hidden mangrove lagoons, dive into the underwater beauty of local reefs, or simply unwind at secluded sandbars scattered along the Lower Keys. As the sun sets, painting the sky in hues of orange and pink, it becomes clear that Marathon delivers an experience as rich and diverse as the waters that surround it.
Types of Charters Offered in Marathon
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Snorkeling & Wildlife
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Sunset Tours
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Dining, Special Occasions, & Birthdays
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Weddings & Ceremonies
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Entertainment & Party Charters
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Professional & Workplace Functions
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Dinner Catching & Fishing
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Historical, Sightseeing, Marine Life, & Shipwreck Charters
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Memorial & Spreading of Ashes
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Real Estate Services
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Pick-up location is at Burdines Waterfront located at 1200 Ocean View Ave, Marathon, FL 33050