Kamogawa Seaworld is not large, and there are only four shows: Beluga whales, seals, dolphins, and the killer whales. Each show lasts about 20 minutes and showtimes vary. There is also a very good aquarium, a walrus and a few other assorted sea animals. The secret is to arrive when SeaWorld opens, see the acquarium, and then follow the shows in order. Otherwise, you might discover you have to wait an hour or two for the next killer whale show. The shows are all narrated in Japanese but this is no problem. The attendees are also mainly Japanese so there is no pushing or other rudeness either. In about 2.5 hours one can cover everything.