3 discoveries
A tower 60 meters offshore where a spiral staircase drops 8 meters below the waves so visitors can watch wild fish swim past the windows — Japan's largest underwater observatory.
A seaside aquarium on the Boso coast famous for its powerful orca show — killer whales leaping against the backdrop of the open Pacific — plus belugas, dolphins, and a walk-through polar zone.
A white aquarium on the Tsuruoka coast that holds the world's largest jellyfish collection — a Guinness record 50-plus species — climaxing in a five-metre 'Jellyfish Dream' tank where 2,000 moon jellies drift in slow, glowing circles.
