Wonder Lake Sportsman's Club Spring Bass Derby, Sunday, May 5th, 2019. Sign up begins at 5:30 a.m. Event will run from 6:00 a.m. to 1:00 p.m. Registration will be at Wonder Center Beach. $15.00 per person with an additional $5.00 option for biggest bass. Two fisherman per boat. One fisherman per boat must be a WL resident. For more information, contact Tony Musel, @ 815-345-8724.