Ōnaruto Bridge

"Great Naruto Bridge") is a suspension bridge that carries 4 lanes of the Kobe-Awaji-Naruto Expressway connecting Minamiawaji, Hyogo on Awaji Island with Naruto, Tokushima on Ōge Island, Japan.

When the bridge was built, space was left for the proposed Shikoku Shinkansen [ja]; however, no progress has been made on the train line, so the space intended originally for the bullet trains is used as an observatory to see the Naruto whirlpools beneath the bridge.

It is also a popular tourist destination for fans of the Naruto anime where it was referenced in episode 19 of the first season.

The bridge has a tourist attraction built into the south side anchor—the Uzunomichi Walkway[2]—an enclosed walkway out to the south tower to allow visitors to view the swirls through side and floor windows, best seen during low tide.

Tourist boats and other vessels circle the towers, allowing visitors to see the depth of the whirlpools up close, while the view from the bridge observatory lets visitors see the pattern created by the eddy currents extending out for quite a distance.