Information provided by Three Rivers Park District. Sunday, October 18, from 1-3 p.m., at Eastman Nature Center, in Elm Creek Park Reserve, Dayton. Check out the fall colors and happenings on a guided, two-mile hike. Cost is $5 and there is a 20 percent discount for groups of four or more. This program is for ages 8+ and children 17 years and younger must be accompanied by a registered adult.