There will be a Night Hike through Sodalis Nature Preserve at 7 p.m. Aug. 11 at Sodalis Nature Preserve. Representatives from the Mississippi Hills Master Naturalists will lead the hike, which will give participants the chance to appreciate nature as the season changes. The program is free but reservations must be made online. Sodalis Nature Preserve was named for the myotis sodalis (Indiana bat) species that was discovered in the park. Bat scientists are estimated that about 215,000 of the bats hibernate in the abandoned limestone mines. The full Night Hike program lasts about two hours and follows a 2-mile paved trail.