Cousins Valerie Hinojosa and Alexandra Hinojosa cool off in a parachute at Quigley Park on Monday afternoon while taking part in the Parks Program, sponsored by the Chelsea Collaborative Youth Summer Jobs program, the Mass General Outdoor Rx and the Chelsea Police. The Parks Program runs Monday through Thursday from 11 a.m. to 3 p.m. and includes a lunch from Project Bread. It operates in both Quigley and Bosson Parks.