The University of California at Santa Cruz includes an Arboretum which has native California plants as well as plants native to South Africa and Australia. There is also a hummingbird garden that attracts the resident Anna’s, Allen’s and Rufous Hummingbirds. The sound walk is a guided walk where the participant is given an ipod, a map, and a bag with a sketchbook for doing guided sketches at 3 locations in the garden.