The big attraction at Oasis Visitor Center, on the east side of Big Cypress Preserve, is the observation deck for viewing fish, birds, and other wildlife. A small butterfly garden's native plants seasonally attract winged wonders. Inside, you'll find an exhibit area, bookshop, and a theater showing an informative 25-minute film on Big Cypress Preserve swamplands. Leashed pets allowed, but not on boardwalk deck. Get your gator watch on at the center's observation deck where big alligators congregate.