El Cerrito Trail Trekkers, in association with the city of El Cerrito’s Environmental Quality Committee and Park and Recreation Commission and with the El Cerrito High Mountain Biking Team, is holding the 3rd Annual Hillside Festival on Sunday May 15, 2016 from 10 am to 5 pm.

Activities for young and old throughout the 100-plus acre wild land area will include: nature hikes, a pop-up bike park, wildflower hikes, geocaching hike, historical tours, hands-on habitat restoration education,  and more.