After road closures scuttled plans by Heal the Bay to conduct a beach clean-up at Westward Beach last Saturday, a few determined students and parents from Point Dume Marine Science School walked to the beach to help pick up cups, trash and other debris left over from the Malibu Triathlon. Saturday was Coastal Clean-Up Day, an annual statewide beach and inland waterway cleanup, when thousands of Californians come together to clean up their local beaches.