Ise Sea Paradise is a small aquarium near Futami, close to the Meoto Iwa rocks. Its appeal is hands-on and family-friendly: seals, walruses, and other marine animals are presented through shows and close encounters rather than large-scale tanks.
It is not the main reason to come to Ise, but it works well as an easy add-on if you are already visiting Futami's seafront. Families with children will get the most from it.