Children's Pool Beach, also known as Casa Beach, is a small sandy beach located at 850 Coast Boulevard, at the end of Jenner Street, in La Jolla, California. Waves crashing against the sea wall at Children's Pool. A sea wall built in 1931 protects the beach from crashing waves, making it a favorite spot for divers, swimmers and families with children. Before the "wave wall" was built, there was a shallow water area between a large rock and a mainland bluff called "Seal Rock Point." The sea wall was built on top of several rocks, across the channel.It is topped by a paved walkway protected by railings. Local philanthropist Ellen Browning Scripps paid for the sea wall project in order to create a Children's Pool, a place where children could play and swim that would be protected from the (sometimes rather large) waves coming onshore.