SeaWorld San Diego, the first SeaWorld park, opened on March 21, 1964. The park features shows such as One Ocean, the current Shamu show and Sea Lions Live, a comedic show with sea lions and otters. Rides include Journey to Atlantis, a splashdown ride that also has characteristics of a roller coaster. The Summer Nights program changes some shows and adds others. One show featuring Shamu is available during the night called Shamu Rocks, a rock concert choreographed to the killer whales.