"How were these undersea tunnels constructed?"
"How do I evacuate if there is an accident or fire in the undersea tunnel?"
The Tokyo Wan Aqua-Line Expressway, which crosses through the middle of Tokyo Bay and consists of over bridges and through tunnels, features a variety of ingenious construction technologies and safety measures that most people may not be familiar with.
We are offering attractive tours for people who want to learn more about the Tokyo Wan Aqua-Line Expressway. We offer tours that guide safety measures such as evacuation facilities in undersea tunnels that are not open to the general public. We look forward to seeing you on our tours.
Our tours are offered throughout the year, every day from Tuesday to Friday, once before noon and once in the afternoon (Two tours a day).
Individual tours: Tuesday and Wednesday (Four tours a week)
Group tours: Thursday and Friday (Four tours a week)
Reservations for the month of Mar. 2019 begin at 10:00 am, Jan. 1, 2019.
Reservations for the Oct. 2019 - Mar. 2020 term begin at 10:00 am, Jun. 3, 2019.
Thursday and Friday tour dates that remain unreserved by a group by two weeks before will be made available one at a time for individual reservations starting the next business day.
Tour Admission (per person including consumption tax)
(13 years old and over)
(9 to 12 years old)
Children under nine years of age may not join the tour. Primary school students must be accompanied by a guardian.
1. We meet up in front of the restrooms on the 1st floor of the Umihotaru parking area. Please make sure to arrive by the meet-up time. At the meet-up time, the group moves to the management building.
2. The group completes reception at the management building and is given an explanation on how the tour will proceed.
3. The group watches a picture that explains how the Tokyo Wan Aqua-Line was constructed.
4. We cut across the parking lot and head for the undersea tunnel entrance.
5. We enter the undersea tunnel entrance and finally sneak into the emergency evacuation passage in the undersea tunnel.
The area beyond this fence is usually not open to the public.
You won't see any cars driving in this huge tunnel. What do you think this tunnel is for? You will find out later in the tour (Stay tuned!).
6. We walk through the emergency evacuation passage and the guide gives an explanation of the undersea tunnel's disaster prevention facilities.
Here we are in the undersea tunnel, where our guide gives us an explanation right under the expressway. This means that cars are driving over the ceiling of where we stand, which is 18 meters below sea level, i.e., underwater.
7. Once the explanations are over, we climb 120 stairs (the same as climbing to the 7th floor of a building) on the emergency staircase to reach the management building on the 1st floor. You can do it! Way to go!
8. On the deck on the Kawasaki side, you will be explained about Kazenotou, dedicated fire engines, cutter face and other facilities.
Weather permitting, this deck also gives you views of Mt. Fuji, Tokyo Tower, and Tokyo Skytree.
9. We go back into the management building and receive a gift. Please take this to home as a memento of this tour.