The Monroe Street Merchants Association is sponsoring the 7th Annual Monroe Street Chocolate Walk on Saturday, April 16 from noon to 4:00. Participants in this popular event, which is a fundraiser for the Henry Vilas Zoo, receive chocolate goodies at over 15 participating Monroe Street shops and restaurants. Henry the Lion from the Henry Vilas Zoo will also be on hand. Tickets, which are $15 and usually sell out in advance, are sold at Orange Tree Imports, 1721 Monroe Street. Call 255-8211 for more information. Call 255-8211 for more information.