National Estuaries Day, 10 a.m. to 3 p.m. Saturday, Sept. 24, is celebrated each year at the country’s 28 national estuarine research reserves, gives people an opportunity learn about the important coastal environments. Rookery Bay invites guests to enjoy half-hour boat trips through the Rookery Bay Reserve (narrated transportation provided from the Rookery Bay Environmental Learning Center to and from the dock; must be 48 inches or taller to go on the boats), half-hour guided kayak trips along Henderson Creek (must be 12 or older and meet height and weight requirements; under 16 must be accompanied by an adult), tours of the science labs, marine critters touch tank, guided trail walks, face painting, and other activities to be announced. Admission: $3 for ages 12 and older and $1 for under 12. Rookery Bay Environmental Learning Center, 300 Tower Road, Naples. Info: 417-6310.