The National Park Service provides a site of more than 45 ponds on 12 acres, with 70 acres of adjacent protected wetlands. Aquatic plants are grown and displayed in a natural setting, including waterlillies, lotus, and other native blooming plants. Keep in mind that there are day and night bloomers, so try to get here early in the morning when you can see them all. Information on all the plants is available at the visitors center, where one can also catch the garden tours conducted in the summer.
Admission is free.