AJT Logo

Seikan Undersea Tunnel    View Tours

SHARE
View
Saved
Tours
View
Saved
Tours
Reserve
Tours
Search
Tours

Seikan Undersea Tunnel

The Seikan Undersea Tunnel is the longest railroad tunnel in the world that goes under water. It is a rail that connects the island Hokkaido with the main one known as Honshu.

The Seikan Undersea Tunnel is 54 kilometers (33 miles) long and goes about 240 meters (14 miles) under the Tsugaru Strait. It was a project that took 17 years to finish and cost about 530 billion yen to build. Its’ construction began in 1971 by the Japanese National Railways. Prior to its construction the idea of a tunnel was considered in the Taisho period (1912-1925), but surveying did not begin until after World War II and the sinking of the Toya Maru ferry. The construction of the tunnel was to help increase traffic between Honshu and Hokkaido because of the economic boom when everyone was traveling more than usual.
BR> Predicted passenger numbers were too much for the ferries back then to handle. At the completion of the tunnel in 1988 all railway transports between Hokkaido and Honshu utilized it. In one day there were 50 scheduled trains using the Seikan Undersea Tunnel from Shin Aomori to Shin Hakodate. Then in 2016 Shinkansen (bullet trains) trains were able to use the tunnel. This new service allowed travel time to be cut down by two hours. It is a great achievement and proof of the engineering capabilities that were put into the Seikan Undersea Tunnel.

Please see below for tours that include Seikan Undersea Tunnel:

17 trips through Japan
Filter by :
Season

Departure Month

Travel Styles  

Interest

Duration

Regions

Must-See & Do

17 trips through Japan
×

Japan Deluxe Tours

Visit the must see sites of Japan with group sizes ranging from 12 to 35 people.

These tours are great for first time visitors to Japan looking for comfortable accommodation with all entrance fees and most meals included. Our Japan Deluxe Tours are accomodated with professional tour guides, fluent in both Japanese and English, to ensure an educational and valuable visit. Air-conditoned, private coaches are also included, so you can enjoy a comfortable and hassle-free time in Japan. Our tours range from 7 to 21 days, to various regions of Japan.

Deluxe-Plus Small Group Tours

Experience the culture of Japan at a slower pace with groups of 10 to 18 people.
(Smaller group departure available)

These tours combine enrichment, enjoyment, and education with time to truly absorb and appreciate your surroundings. Our Deluxe-Plus small group tours are created to cater to those who are interested in having a deeper understanding of Japan's culture. You will have the opportunity to participate in culturally rich activities and visit destinations only locals may know. Experience luxurious hotels and travel at a leisurely pace when you book a Deluxe-Plus small group tour.

Ultra-Deluxe Small Group Tours

Tour Japan with the finest accommodations and experiences in groups of 2 to 6 people.

Enjoy more than just sightseeing. These tours will allow you to eat in small local restaurants, visit hidden gems, stay at hotels with limited occupancy, take part in activities available only to small groups, and enjoy more interaction with your tour guides. Ultra-Deluxe small group tours are the ultimate way to visit Japan with hand-picked, top hotels and ryokans (traditional inns) to relax in. Select from a unique range of luxurious cultural experiences that are limited to smaller groups, which is why the maximum group size is 6 guests.

Japan Walking Tours

Travel Japan more flexibly in groups of 10 to 16 people using public transportation.

These tours allow you to enjoy Japanese culture firsthand in the intimacy of a small group. The maximum group size is 12 guests, which enables you to travel by public transportation, such as by train, subway, taxi, ferry or local bus. Walking the streets and taking the local trains will allow you to interact more with the locals and appreciate what everyday life in Japan is like. Each city will feature an expert local guide who will be able to share in-depth information on the featured attractions and sites, and provide assistance or recommendations if needed prior to your free time.

1 2 > All
1 2 > All
Charms of Northern Japan Tour (Reverse): Cherry 
Blossoms & Wisteria 2022 - 4/24

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan Tour (Reverse): Cherry Blossoms & Wisteria 2022 - 4/24
Charms of Northern Japan Tour (Reverse): Cherry Blossoms & Wisteria 2022 - 4/24

9 Days 8 Nights | from US $3398.00

Ashikaga / Nikko / Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel / Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus cherry blossoms & wisteria in Spring.

9 Days 8 Nights | from US $3398.00

Ashikaga / Nikko / Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel / Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus cherry blossoms & wisteria in Spring.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Sun. Apr 24, 2022 Mon. May 2, 2022 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Sun. Apr 30, 2023 Mon. May 8, 2023 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Charms of Northern Japan: Cherry Blossoms & Baby 
Blue Eyes Flowers 2022 - 5/3

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan: Cherry Blossoms & Baby Blue Eyes Flowers 2022 - 5/3
Charms of Northern Japan: Cherry Blossoms & Baby Blue Eyes Flowers 2022 - 5/3

9 Days 8 Nights | from US $3398.00

Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Morioka / Hiraizumi / Matsushima / Nikko / Hitachi Seaside Park
The must see sights of Hokkaido & Tohoku with spring cherry blossoms and baby blue eye flowers at Hitachi Seaside Park.

9 Days 8 Nights | from US $3398.00

Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Morioka / Hiraizumi / Matsushima / Nikko / Hitachi Seaside Park
The must see sights of Hokkaido & Tohoku with spring cherry blossoms and baby blue eye flowers at Hitachi Seaside Park.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Tue. May 3, 2022 Wed. May 11, 2022 US $3398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Wed. May 3, 2023 Thu. May 11, 2023 US $3398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Charms of Northern Japan (Reverse): Autumn Leaves 
Tour 2022 - 10/13

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan (Reverse): Autumn Leaves Tour 2022 - 10/13
Charms of Northern Japan (Reverse): Autumn Leaves Tour 2022 - 10/13

9 Days 8 Nights | from US $3398.00

Nikko / Matsushima / Hiraizumi / Morioka / Towada / Aomori / Seikan Tunnel / Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus fall foliage in Autumn.

9 Days 8 Nights | from US $3398.00

Nikko / Matsushima / Hiraizumi / Morioka / Towada / Aomori / Seikan Tunnel / Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus fall foliage in Autumn.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Wed. Oct 13, 2021 Thu. Oct 21, 2021 US $3398.00 Tokyo Sapporo Deluxe Save this tour Sold Out
Thu. Oct 13, 2022 Fri. Oct 21, 2022 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Fri. Oct 13, 2023 Sat. Oct 21, 2023 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Charms of Northern Japan (Reverse): Cherry 
Blossom Tour 2022 - 4/18

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan (Reverse): Cherry Blossom Tour 2022 - 4/18
Charms of Northern Japan (Reverse): Cherry Blossom Tour 2022 - 4/18

9 Days 8 Nights | from US $3398.00

Omiya / Nikko / Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel / Hakodate / Shikabecho / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus cherry blossom in Spring.

9 Days 8 Nights | from US $3398.00

Omiya / Nikko / Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel / Hakodate / Shikabecho / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo
The must see sights of Tohoku & Hokkaido...plus cherry blossom in Spring.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Mon. Apr 18, 2022 Tue. Apr 26, 2022 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Tue. Apr 18, 2023 Wed. Apr 26, 2023 US $3398.00 Tokyo Sapporo Deluxe Save this tour Book Now  
Charms of Northern Japan: Autumn Leaves Tour 2022 - 
11/5

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan: Autumn Leaves Tour 2022 - 11/5
Charms of Northern Japan: Autumn Leaves Tour 2022 - 11/5

9 Days 8 Nights | from US $3398.00

Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Aomori / Towada / Morioka / Hiraizumi / Matsushima / Nikko
The must see sights of Hokkaido &Tohoku...plus fall foliage in Autumn.

9 Days 8 Nights | from US $3398.00

Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Aomori / Towada / Morioka / Hiraizumi / Matsushima / Nikko
The must see sights of Hokkaido &Tohoku...plus fall foliage in Autumn.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Sat. Nov 6, 2021 Sun. Nov 14, 2021 US $3398.00 Sapporo Tokyo Deluxe Save this tour Sold Out
Sat. Nov 5, 2022 Sun. Nov 13, 2022 US $3398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Sat. Nov 4, 2023 Sun. Nov 12, 2023 US $3398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Charms of Northern Japan Tour: Tohoku 3 Great Summer 
Festivals 2022 - 7/29

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Charms of Northern Japan Tour: Tohoku 3 Great Summer Festivals 2022 - 7/29
Charms of Northern Japan Tour: Tohoku 3 Great Summer Festivals 2022 - 7/29

12 Days 11 Nights | from US $4398.00

Furano / Biei / Otaru / Sapporo / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Aomori / Akita / Kakunodate / Hiraizumi / Sendai / Matsushima / Urabandai / Aizu Wakamatsu / Nikko
The must see sights of Hokkaido & Tohoku...plus Tohoku 3 Great Summer Festivals.

12 Days 11 Nights | from US $4398.00

Furano / Biei / Otaru / Sapporo / Shiraoi / Noboribetsu / Lake Toya / Hakodate / Seikan Tunnel / Aomori / Akita / Kakunodate / Hiraizumi / Sendai / Matsushima / Urabandai / Aizu Wakamatsu / Nikko
The must see sights of Hokkaido & Tohoku...plus Tohoku 3 Great Summer Festivals.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Fri. Jul 29, 2022 Tue. Aug 9, 2022 US $4398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Sat. Jul 29, 2023 Wed. Aug 9, 2023 US $4398.00 Sapporo Tokyo Deluxe Save this tour Book Now  
Hokkaido, Tohoku & Central Japan Tour (Reverse): 
Cherry 
Blossoms & Wisteria 2022 - 4/17

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Hokkaido, Tohoku & Central Japan Tour (Reverse): Cherry Blossoms & Wisteria 2022 - 4/17
Hokkaido, Tohoku & Central Japan Tour (Reverse): Cherry Blossoms & Wisteria 2022 - 4/17

16 Days 15 Nights | from US $5798.00

Central Japan (Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Matsumoto / Mt Fuji / Hakone / Tokyo / Ashikaga / Nikko), Tohoku (Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel), Hokkaido (Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Experience Japan's famous cherry blossom trees and captivating wisteria flowers while exploring popular attractions and local gems.

16 Days 15 Nights | from US $5798.00

Central Japan (Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Matsumoto / Mt Fuji / Hakone / Tokyo / Ashikaga / Nikko), Tohoku (Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel), Hokkaido (Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Experience Japan's famous cherry blossom trees and captivating wisteria flowers while exploring popular attractions and local gems.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Sun. Apr 17, 2022 Mon. May 2, 2022 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
Sun. Apr 23, 2023 Mon. May 8, 2023 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
Hokkaido, Tohoku & Central Japan (Reverse): 
Takayama Festival & Autumn Leaves 2022 - 10/6

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Hokkaido, Tohoku & Central Japan (Reverse): Takayama Festival & Autumn Leaves 2022 - 10/6
Hokkaido, Tohoku & Central Japan (Reverse): Takayama Festival & Autumn Leaves 2022 - 10/6

16 Days 15 Nights | from US $5798.00

Central Japan (Osaka / Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Mt Fuji / Hakone / Tokyo / Nikko), Tohoku (Matsushima / Hiraizumi / Morioka / Towada / Aomori / Seikan Tunnel), Hokkaido (Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Exploring Japan's two main islands: Honshu & Hokkaido, as well as the Takayama Hachiman Autumn Festival.

16 Days 15 Nights | from US $5798.00

Central Japan (Osaka / Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Mt Fuji / Hakone / Tokyo / Nikko), Tohoku (Matsushima / Hiraizumi / Morioka / Towada / Aomori / Seikan Tunnel), Hokkaido (Hakodate / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Exploring Japan's two main islands: Honshu & Hokkaido, as well as the Takayama Hachiman Autumn Festival.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Wed. Oct 6, 2021 Thu. Oct 21, 2021 US $5798.00 Osaka Sapporo Deluxe Save this tour Sold Out
Thu. Oct 6, 2022 Fri. Oct 21, 2022 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
Fri. Oct 6, 2023 Sat. Oct 21, 2023 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
Hokkaido, Tohoku & Central Japan: Kyoto Aoi Festival & 
Cherry Blossoms 2022 - 5/3

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Hokkaido, Tohoku & Central Japan: Kyoto Aoi Festival & Cherry Blossoms 2022 - 5/3
Hokkaido, Tohoku & Central Japan: Kyoto Aoi Festival & Cherry Blossoms 2022 - 5/3

16 Days 15 Nights | from US $5798.00

Hokkaido (Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate), Tohoku (Seikan Tunnel / Morioka / Hiraizumi / Matsushima), Central Japan (Nikko / Hitachi Seaside Park / Tokyo / Mt Fuji / Hakone / Hikone / Koka / Kyoto / Nara / Osaka)
Experience one of Kyoto's largest festivals, visit Japan's main cities, see the baby blue eye flowers, and catch sight of cherry blossoms in Northern Japan.

16 Days 15 Nights | from US $5798.00

Hokkaido (Sapporo / Otaru / Shiraoi / Noboribetsu / Lake Toya / Hakodate), Tohoku (Seikan Tunnel / Morioka / Hiraizumi / Matsushima), Central Japan (Nikko / Hitachi Seaside Park / Tokyo / Mt Fuji / Hakone / Hikone / Koka / Kyoto / Nara / Osaka)
Experience one of Kyoto's largest festivals, visit Japan's main cities, see the baby blue eye flowers, and catch sight of cherry blossoms in Northern Japan.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Tue. May 3, 2022 Wed. May 18, 2022 US $5798.00 Sapporo Osaka Deluxe Save this tour Book Now  
Wed. May 3, 2023 Thu. May 18, 2023 US $5798.00 Sapporo Osaka Deluxe Save this tour Book Now  
Hokkaido, Tohoku & Central Japan (Reverse): 
Takayama Festival & Cherry Blossoms 2022 - 4/11

Group Tour | Deluxe          Book Now & Save $100

Group Tour | Deluxe    Book Now & Save $100

Hokkaido, Tohoku & Central Japan (Reverse): Takayama Festival & Cherry Blossoms 2022 - 4/11
Hokkaido, Tohoku & Central Japan (Reverse): Takayama Festival & Cherry Blossoms 2022 - 4/11

16 Days 15 Nights | from US $5798.00

Central Japan (Osaka / Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Mt Fuji / Hakone / Tokyo / Nikko), Tohoku (Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel), Hokkaido (Hakodate / Shikabecho / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Travel on a cherry blossom filled journey through Honshu and Hokkaido, and experience the Takayama Spring Festival.

16 Days 15 Nights | from US $5798.00

Central Japan (Osaka / Nara / Kyoto / Kanazawa / Shirakawa-go / Takayama / Mt Fuji / Hakone / Tokyo / Nikko), Tohoku (Matsushima / Hiraizumi / Kitakami / Morioka / Seikan Tunnel), Hokkaido (Hakodate / Shikabecho / Lake Toya / Noboribetsu / Shiraoi / Otaru / Sapporo)
Travel on a cherry blossom filled journey through Honshu and Hokkaido, and experience the Takayama Spring Festival.
Start Date End Date Twin/Triple Start City End City Style Compare Status
Mon. Apr 11, 2022 Tue. Apr 26, 2022 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
Tue. Apr 11, 2023 Wed. Apr 26, 2023 US $5798.00 Osaka Sapporo Deluxe Save this tour Book Now  
1 2 > All
1 2 > All

Tour type