(Clam #4) at Pismo Beach Playground in Pismo Beach, San Luis Obispo County, CA. Pomeroy Av. SW 1 block from jct with Cypress St. into parking lot. Playground is SW of the S. corner of the parking lot. (N35 08.304 W120 38.565) Photo by Mark & Clare & Maggie Comstock 10-7-23.