- Water Canyon Beach lies on the eastern shore of Santa Rosa along Bechers Bay. The beach extends five miles along the bay and includes many interesting landforms, such as, sea caves, marine terraces, volcanic formations and large dunes. Water Canyon Beach provides an easy walking area and a great place to view scenery and wildlife. Fishing is also permitted along this beach, with a valid California license. To reach the beach head downhill from the landing pier, campground and air strip.