There are very few places in the world where you can spend quality time watching manatees, one of the most unusual marine mammals. With their large fin-like tails, they are though to be the inspiration for mythological mermaids. And Crystal River National Wildlife Refuge along Florida’s Gulf Coast is arguably the best spot in the world to see them. This 46-acre refuge was created to protect the manatees that congregate here in large numbers during the winter months. The unique location is home to a network of underground springs that coalesce into the headwaters of the Crystal River. A collection of nine islands offers vital resting areas for these slow moving animals, which can get hurt or stressed by motorboats.