It’s that time of year again. Join thousands of volunteers on Long Island for the Ocean Conservancy’s International Coastal Cleanup on Saturday, Sept. 21, a day to come together to pick up trash from coastlines and waterways to help marine life. Local cleanup sites include Wildwood State Park in Wading River, Caumsett State Historic Park in Huntington, Belle Terre, Kings Park and Sound Beach. To sign up for a location near you, visit www.oceanconservancy.org.