2026 Del Valle Open Water Festival

The 2026 Del Valle Open Water Festival is a two-day event featuring 10k, 5k, 1.5k, and 2.5k swims. Held at scenic Lake Del Valle in Livermore Valley Wine Country, the water temperature is expected to be 68-75°F. The venue offers a large grassy park and beach for spectators and participants. Event Details: • Dates: Saturday, June 20, 2026 (300 participants) and Sunday, June 21, 2026 (350-400 participants) • Special Division: "Just for Fun" 1.5k and 2.5k swims allowing fins, pull buoys, or snorkels • Participants: Adult and youth open water enthusiasts and former Olympic and U.S.A. National Team swimmers. ~50-100 youth swimmers • More Info & Registration: Del Valle Open Water Festival We anticipate welcoming participants from across the nation and around the globe.