San Joaquin County Parks and Recreation and the Delta Fly Fishers will host the 34th annual Catfish Derby on Saturday, June 2 beginning at 6:15 a.m. at Oak Grove Regional Park in Stockton. Kids age 15 years and younger fish for catfish free at Oak Grove’s 10-acre lake during the event. There is no registration fee, however, a $5 fishing permit fee and valid California fishing license are required for those 16 years of age or over. A $6 vehicle-parking fee will also apply. All State Fish and Game laws apply. Participants must supply their own fishing equipment. For more information, call (209) 331-2050 or log onto www.sjparks.com.