This 163-acre swamp garden was used as a freshwater reserve for Dean Hall, a huge Cooper River rice plantation, and was given to the city in 1963. Today the giant cypress trees draped with Spanish moss provide an unforgettable setting for flat-bottom boats that glide among their knobby roots. Footpaths in the garden wind through a profusion of azaleas, camellias, daffodils, and other colorful blooms. Visitors share the swamp with alligators, pileated woodpeckers, wood ducks, otters, barred owls, and other abundant species. The gardens are worth a visit at any time of year, but they're at their most colorful in March and April. Also on-site are a reptile center, aquarium, and aviary, plus a butterfly house.