The scavenger hunt has participants solve riddles, answer questions and take pictures to win prizes, and there is a post-race party at Pat O'Brien's. Participants can also donate food, a leash, collar, toy, bed or money to the LA/SPCA at the event. Visit www.playnola.com/events for details. Admission $20 in advance, $25 day of event. 9:30 a.m.