The Houston Happy Hikers will host a non-competitive, non-timed walk in The Heights Sat., March 25, starting at 9 a.m. from the Carter & Cooley Delicatessen, 375 W. 19th St. Participants can walk, jog or run at any desired pace to finish 11k or 5k by 3 p.m. The trail will lead down Heights Boulevard, along White Oak Bayou, and through neighborhoods. Registration is $3. For more info, see www.houstonhappyhikers.com or contact Mary Wheat at 832-646-4319.