Tokyo Bay Aqua Line, Kawasaki

3.6
#9 of 69 in Things to do in Kawasaki
The Tokyo Bay Aqua-Line, also known as the Trans-Tokyo Bay Highway, is a bridge–tunnel combination across Tokyo Bay in Japan. It connects the city of Kawasaki in Kanagawa Prefecture with the city of Kisarazu in Chiba Prefecture, and forms part of National Route 409. With an overall length of 14 km, it includes a 4.4 km bridge and 9.6 km tunnel underneath the bay—the fourth-longest underwater tunnel in the world.OverviewAt the bridge–tunnel crossover point, there is an artificial island called Umihotaru with a rest area consisting of restaurants, shops and amusement facilities. Air is supplied to the tunnel by a distinctive tower in the middle of the tunnel, called the Kaze no Tō (風の塔, "the tower of wind"), which uses the bay's almost-constant winds as a power source.The road opened on December 18, 1997 after 23 years of planning and 9 years of construction at a cost of 1.44 trillion yen (11.2 billion USD at the time of opening).The Tokyo Bay Aqua-Line reduced the drive between Chiba and Kanagawa, two important industrial regions, from 90 to 15 minutes, and also contributed to cutting the travel time to the sea leisure area in the southern part of the Bōsō Peninsula from Tokyo and Kanagawa. Before the tunnel opened, one had to drive around about 100 km along the shores of Tokyo Bay and pass through downtown Tokyo.
To visit Tokyo Bay Aqua Line and other attractions in Kawasaki, use our Kawasaki vacation route planner.
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105 reviews
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3.9
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  • July 27, 2017
    Kisarazu National College went to the barbecue has been used. Because it passes through a tunnel under the sea here now? I think it is. If you have time with UMI Hotaru also used.
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  • July 11, 2017
    Than the UMI Hotaru Kawasaki man is all underground tunnels so enjoy the landscape, the Kisarazu side runs out over the sea. When so often cause traffic jams on the weekend, but toward Kisarazu 13 o'clock to Kawasaki 20 o'clock passed on Saturday was very smooth.
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  • July 10, 2017
    Aqua is crowded is not advisable, but would recommend early in the morning. Passengers coming from overseas, running, well be proud Japan! Very convenient, and Kanagawa and Chiba has signed in a short period of time. The road itself is normal and can't point to show off to foreigners, is not especially good, long, bottom part only so-so and it seems.
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  • May 24, 2017
    Scenic place, located in middle of the sea. You can enjoy 360 degree view of bay area from Yokohama to Chiba. I simply love this place. Have a cup off coffee and sit on the side bench to enjoy the view..
  • May 21, 2017
    Good view of the bay. Gets very windy.
  • February 19, 2017
    One of my favorite place whenever visiting Motherfarm every year. Hats off to the designers and workers. Awesome and no words to say about maintanance it's great.
  • June 18, 2017
    Crowded but a place to stopover after a long drive. Enough choice to decide what to do.
  • February 11, 2017
    The view is amazing. And there so much wind blowing here. It feels kind of nice, actually.

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Numerous affordable options exist when staying in Kawasaki, especially those catering to visitors on business trips. A very basic business-hotel chain has a number of establishments in Kawasaki, offering essentials-only lodgings, while a luxury hotel chain caters to visitors with deeper pockets. Several mid-range enterprises round out the selection, mostly centrally located and providing amenities such as Internet access, breakfast options, and clean, spacious rooms.
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