Shadow Cliffs Dive Against Debris Nov 22 2017 Share Facebook Twitter Share Email Begins Wednesday, 22 November, 2017 - 5:00 PM Ends Wednesday, 22 November, 2017 - 4:00 PM Pleasanton, United States Locate 37.6692998, -121.841661 View on Google Maps By nlightner pick up trash underwater at Shadow Cliffs in Pleasanton Ca