The Upper Newport Bay is a part of a 1000-acre natural and ecological reserve, and is one of the largest estuaries in Southern California. In 1975, this land was purchased by the state of California and eventually became an Orange County regional park. This bay’s highlight is the San Diego Creek, which flows through the San Joaquin Wildlife Sanctuary and connects to the Pacific Ocean. The park also features the Peter and Mary Muth Interpretive Center, an educational facility with historical exhibits and interactive displays. Although this bay is different from your typical beach scene, it is a great destination for those who want a more intimate encounter with nature.