Newport Beach’s Back Bay is a spot cherished for its hiking trials, wildlife and even scenic views that lend themselves to plein air painting. Yet, each year thousands of pounds of trash make its way into the natural wetlands. Which is why OC Parks and the Newport Bay Conservancy team up annually for Coastal Cleanup Day at Upper Newport Bay. The two organizations are seeking nearly 1,000 volunteers to help remove trash as well as invasive plant species from the ecological reserve from 9 a.m. to noon on Saturday, Sept. 20.