Buy-one-get-one-free admission On select Friday’s throughout the summer, visitors enjoy buy-one-get-free admission to the Rookery Bay Environmental Learning Center and a host of activities for the whole family including story hour with a Collier County Librarian, crafts, food truck onsite, marine animal “arm art” and a family movie in the 125-seat auditorium. Plus, fun for all ages at touch tanks filled with marine critters, nature exhibits and aquariums in the 16,500 square feet, air-conditioned Environmental Learning Center.