A scavenger hunt starts at 5:30 p.m., Saturday, April 17, at Delectables (533 N. Fourth Ave.) and ends at 7 p.m. at Sky Bar (536 N. Fourth Ave.). Participants will be grouped in teams of five and supplied with treasure maps. Prizes will be awarded to the top team. The event is sponsored by Arizona Opera and the Fourth Avenue Merchants Association. $40. Call 293-5126, or e-mail email@example.com for more information.