A few hours north of Tampa on Florida's Nature Coast, the small town of Crystal River has an unusual claim to fame: it's one of the only places in the United States where you can legally get in the water with wild manatees. The town sits on Kings Bay, a system of spring-fed waterways so clear they've earned the place its name — and every winter, hundreds of manatees move in to escape the cold Gulf of Mexico.

Manatee season runs roughly November to March, peaking in December through February. That's when the animals crowd into the warm springs, and your odds of an encounter go way up. Sightings happen year-round, but winter is the sweet spot.

The signature experience is a three-hour snorkelling tour: wetsuit, mask and boat ride included, groups capped at around 12 people. Rules are strict — you float passively and let the manatees come to you. No chasing, no touching. Plenty of operators sell underwater photos afterwards, which beats any souvenir shop.

Not keen on getting wet? A 90-minute manatee-viewing cruise through the Crystal River National Wildlife Refuge works well, especially for families. Pro tip from frequent visitors: polarised sunglasses make the animals far easier to spot below the surface.

Paddlers should look at a clear kayak tour of Kings Bay — transparent boats mean you can watch manatees glide underneath you. One quirk to know: kayaks aren't allowed inside Three Sisters Springs itself during winter manatee season, though guided tours can still explore the surrounding waterways. In summer you can paddle right in and swim in the turquoise water.

Beyond the manatees, there's more to fill a long weekend. The Crystal River Archaeological State Park is a 61-acre site with Native American burial mounds dating back nearly 2,000 years; climbing the 51 steps up Temple Mound A gets you river views, and entry costs just $3 per vehicle. Nearby Homosassa serves up 90-minute airboat rides along the river toward the Gulf — dolphins, sea turtles and ospreys are common sightings, and captains slow down for wildlife. Twenty minutes inland, the town of Inverness has a free heritage museum in a 1912 courthouse that once appeared in Elvis's 1961 film Follow That Dream.

Practicalities: you'll want a car. Downtown Crystal River is walkable, but Homosassa, Inverness and the beaches are spread out. Tours sell out fast in winter, so book manatee swims and kayak trips ahead. A sensible three-day plan: swim with manatees and catch sunset at Hunter Springs Park on day one, kayak and hit the archaeological park plus Fort Island Beach on day two, then Homosassa wildlife park and an airboat ride before waterfront drinks on day three.

Who's this for? Wildlife lovers, families with kids too young to snorkel, and anyone who wants a Florida trip that's not theme parks. If swimming alongside a 1,000-pound animal that has zero interest in eating you isn't on your list yet, it probably should be.