Wild Waves (1929)
At the beach, Minnie is swept out to sea by a wave (while still wearing her high heels!). Mickey struggles with a rowboat (taken from atop an amorous couple) before swimming out to save her. When Minnie comes ashore, she is disoriented and depressed, so Mickey and the various creatures on the shore (pelicans, a walrus, seals, etc.) do a little song and dance to cheer her up.