Guided Nature Walk at Barefoot Beach Preserve. Enjoy a guided walk along the boardwalk through a maritime forest and coastal strand. Free. There is an entrance fee into the park for those who do not have a current Collier County park permit. Turn south off of Bonita Beach Road onto Barefoot Beach Blvd. and go about 1 1/2 miles to park entrance. Park in the first parking area on the right and meet at the Learning Center. Approximately a 1-hour walk. Held every Saturday.