FRIENDS of the San Juans will offer free shoreline beach walks and hands-on activities on Orcas, Lopez and San Juan. Learn about geology, forage fish, shoreline vegetation and nearshore fish species. All ages are welcome to this event held on the following dates: Orcas Island, Crescent Beach, Wed., Aug. 7, 9:30 to 11:30 a.m.; Lopez Island, Odlin County Park, Wed., Aug. 7, 1:30 to 3:15 p.m.; San Juan Island, South Beach, Thurs., Aug. 8, 10 a.m. to 12 p.m.