Kamogawa Sea World is pretty far from Tokyo area but if you have a car, why not take a drive. Kamogawa Sea World is famous for having Killer Whales. Unique things about this aquarium is that there are three big swimming pool for three different shows. Dolphins, killer whales and Seals I believe.
The beach right next to the aquarium was super duper beautiful. Greenish blueish clear watered ocean and the beach. If you are looking for a place to go and if you love going to the aquarium, why not go to Kamogawa Sea World!