Cal Tri Castaic Lake
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2026 Cal Tri Castaic Lake - 6.20.26
The event takes place on Saturday, June 20, 2026 at Castaic Lake Paradise Cove in Castaic, California. The program offers 18 event options across three distance groups: Olympic, Sprint, and Youth Sprint. Youth events are listed as free and open to ages 7 to 17.
Triathlon is defined as swim plus bike plus run. Swim distances listed in the program include a 400 yard sprint swim and a 1640 yard Olympic swim. RunBikeRun formats list measured running and cycling segments, for example sprint 5km - 15km - 5km and Olympic 5km - 40km - 10km. Course maps provide the specific bike distances and other course details.
Event location and setting details are provided for participants. Castaic Lake Recreation Area is described as an 11,200 acre multi use facility with two lakes and facilities for boating, fishing, hiking, walking, horseback riding, wake boarding, jet skiing, camping, picnicking, kayaking, and sailing. The listing notes typical water temperatures and regional climate ranges for planning purposes.
Additional event options include standalone swim and run distances, combined swimbike and swimrun formats, and a sponsor 10 by 10 tent option. Parking is noted at Castaic Lagoon with an associated fee. Visit the organization's website for the most recent information.
