Musician Tristan Prettyman to headline at Panda Paddle Local San Diego singer-songwriter, Tristan Prettyman, has joined forces with WWF to perform at their upcoming fundraiser Panda Paddle at Bonita Cove, San Diego on Oct. 20, 2018.   Panda Paddle, WWF’s first-ever athletic fundraising event, blends a world-class stand-up paddleboard competition with a world-changing cause—protecting the