Bonsall, California is a small unincorporated community located in San Diego County. The climate in Bonsall is typically Mediterranean, with warm, dry summers and mild winters. The region's hydrology constituents include the San Luis Rey River, which runs through the community and provides a water source for residents and agriculture. Outdoor recreation opportunities in Bonsall include hiking and equestrian trails, such as the Santa Margarita River Trail and the San Luis Rey River Trail. The area also boasts several golf courses, including The Golf Club of California and The Vineyard at Escondido. Additionally, Bonsall is home to the San Luis Rey Downs Training Center, a popular destination for horse racing enthusiasts.