Tri-Valley Water Polo Club (USA Water Polo Club ID: #21775) is a competitive year-round organization designed to provide a high-level water polo experience for top athletes in the Tri-Valley area. Formed in 2023, our club is the result of the merging of the Altamont, AVWPC & Diablo South water polo clubs.  We strive to create a supportive youth sports experience for all participants through positive and professional coaching that teaches life lessons through team goals, challenges, and successes. Tri-Valley Water Polo Club is committed to growing the sport in our area and to showcasing the wealth of talent that exists in our region to increase broader exposure for our athletes.