The Activity Nut Foundation, Inc. presents the annual Tri Santa Cruz triathlon on Sunday, August 10, 2025.  The races consist of an ocean swim, flat out and back bicycle route and a scenic run along the West Cliff Drive pathway.  Featuring both Sprint and International (Olympic) distance Triathlon, Aquabike, Duathlon, Aquathlon and Relay races, this event also hosts a non-competitive Family & Friends wave for people who are new to triathlon or just want to race with family and friends.