The Cal Tri Lake Perris event occurs in a sprawling 8,200-acre area conveniently located near Anaheim, Los Angeles, and San Diego. Participants can choose from 18 endurance sports events, including triathlons and swim-bike-run combinations for various skill levels and categories, adults and youth alike. Expect an average air temperature of between 53°F and 76°F, with water temperatures around 62°F, where wetsuits are recommended. Enjoy nearby attractions like Lake Perris, the Mission Inn Museum, and the March Field Air Museum. The closest major airport is Ontario International Airport (ONT).