Join a local natural resources agent and hike along two miles of boardwalks and natural trails at Brooker Creek Preserve. Come prepared with binoculars, cameras and questions. Questions can also be researched in the resource room upon return to the education center. 10 to 11:30 a.m. Free; advance registration required. Brooker Creek Preserve, 3940 Keystone Road, Tarpon Springs. (727) 453-6800; www.brookercreekpreserve.org. As a winter special, Brooker Creek Preserve Environmental Education Center will be open from 9 a.m. to 4 p.m. each Wednesday in March and April 2013, in addition to Thursday, Friday and Saturday.