South Bass Island, OH

Located in Lake Erie, this small island is home to the 36-acre South Bass Island State Park, a popular spot for fishing, sunbathing, and picnicking. The island's largest city, Put-In-Bay, is often dubbed “The Key West of the North" thanks to its tropical-inspired vibe (think pool parties, swim-up bars, and tiki bars). Oenophiles should pay a visit to Heineman Winery, which offers affordable wine tastings and underground cave tours.

Getting there: The island is easily accessible by boat. Miller Ferry (from Catawba Island) and Jet Express (from Sadusky, Cedar Point, or Kelleys Island) both service the island.