CLEANUP: Andrew Schreier, a River Haven founder, plays with his dog, Tarrin, while picking up trash along the beach in Ventura. (Stephen Osman / LAT)
NEIGHBORS: Mark Single, right, and Andrew Schreier chat in a lanterns glow. We wanted a safe place, Schreier says of the camp. (Stephen Osman / LAT)
HEARTH MONITOR: Leonard Biga is an elected leader of the River Haven tent city in Ventura. Residents pay $200 per month in rent to the campground, which is near the banks of the Santa Clara River. (Stephen Osman / LAT)