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Manatee Snorkel Tour
What better swimming companion is there than a manatee? Snorkel the Crystal River with Bird's Underwater and explore the manatee's natural habitat. Though these large aquatic mammals weigh, on average, a whopping 1,200 pounds, they are playful and curious with swimmers. Visitors can watch the so-called sea cows graze along the river bottom during a three- to four-hour tour; book during the cooler period from mid-October to mid-March for maximum manatee sightings.
(Photo: Snorkeler with Manatee, Crystal River, Florida via Shutterstock)