Tokushima Prefectural Uzu-no-Michi Ticket

See the Naruto Strait from Uzu no Michi, a 450-metre walkway built beneath the Onaruto Bridge, 45 metres above the sea. Walk above one of Japan's fastest tidal currents and look through glass floor panels towards the whirlpools below. You can also choose admission to the Onaruto Bridge Crossing Memorial Hall Eddy, where interactive exhibits explain the whirlpools and bridge engineering.