The Wood County Park District will offer free Leprechaun Open Geocaching, on Saturday, March 21, 10 a.m. to 1 p.m., at Bradner Preserve, 11491 Fostoria Road, Bradner.

Participants can solve riddles to find the hidden leprechauns’ secret treasure caches. Stop by anytime between 10 a.m. and 1 p.m. to borrow one of park’s GPS units or bring a smartphone with the Google Maps app and search for hidden g…