Cal Tri Castaic Lake
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2026 Cal Tri Castaic Lake
The 2026 Cal Tri Castaic Lake event takes place on June 20, 2026 at Castaic Lake Paradise Cove in Castaic, California. The event program lists 18 event options across Olympic, Sprint, and Youth Sprint formats that combine swimming, biking, and running in different combinations.
Event types and sample distances include:
- Olympic Triathlon
- Sprint Triathlon
- Youth Sprint Triathlon
- Olympic RunBikeRun (5 km run, 40 km bike, 10 km run)
- Sprint RunBikeRun (5 km run, 15 km bike, 5 km run)
- Olympic Swim (1640 yards)
- Sprint Swim (400 yards)
- 10K run
- 5K run
- Youth 5K and youth swim options
The venue is the Castaic Lake Recreation Area, described as a multiuse facility with two lakes and more than 11,000 acres of parkland and open space. The area offers boating, fishing, hiking, camping, and other water activities. The event listing also notes an average water temperature near 82 F and mentions a free youth racing initiative for ages 7 to 17 at many Cal Tri events; several youth sprint events at this race are shown as full.
Additional on-site offerings include vendor and sponsor tent space. Course maps and a traffic control plan are referenced for detailed course information. Visit the organization's website for the most recent information.
