August 5, 2018, the Bonsai Rock area of Lake Tahoe (a popular tourist/photography spot) was subject to its first ever (that we know of) group dive cleanup. A couple dozen divers, a dozen kayakers/paddleboarders, and some folks on the shore removed an estimated 500-600 pounds of trash from this area, in about 4 hours. Sand Harbor State Park (illegal for drones) is just to the north of this, but Bonsai Rock falls outside park borders, making it ok to fly my drone here - from my kayak, even!