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Imagine stepping aboard a silver spaceship in Asakusa and sailing back into the Edo period.
That is what a water bus ride down the Sumida River feels like. The boat looks as if it came straight out of a science-fiction comic, yet the river beneath it was the great highway of old Edo. For centuries, boats carried rice, timber and travelers along this river, and its bridges were where the city gathered, celebrated and, at times, fled from disaster.
In Part 1 and Part 2, we explored the streets of old Asakusa through the eyes of Demon Slayer. This time, as promised, we take to the water. As a geography teacher, I think this one-hour trip from Asakusa to Odaiba is one of the best ways to see how Tokyo grew, from a city of wooden bridges to a waterfront of steel and glass.
Quick facts
| Scene | Sumida River and Tokyo Bay by water bus |
| Route | Asakusa Pier → down the Sumida River → under Rainbow Bridge → Odaiba Seaside Park |
| Fare | ¥2,000 adults / ¥1,000 children (Emeraldas, direct) |
| Time | About 55 minutes by timetable (my boat arrived in about 40) |
| Nearest station | Asakusa Station (Ginza Line / Asakusa Line Exit 4, 1 min walk) |
Finding the pier
From Kaminarimon Gate, walk a few minutes toward the Sumida River, the side where you can see Tokyo Skytree. Next to Azumabashi Bridge, just behind the small Japanese-style police box, you will find the ticket building with “TOKYO CRUISE” written on it.
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Buy your ticket first, then explore
There are ticket machines inside, but there is almost always a queue, and departures leaving soon often sell out. There seem to be many boats, but they go to several destinations. Only about six a day sail directly to Odaiba, so if you miss the one you want, you may wait two hours or more.
My advice: buy your ticket first, then walk back to Senso-ji until departure time. Even better, book online in advance.


If you book online, your e-ticket arrives by email and opens on your phone. On the way to the boarding gate, you will find a small check-in device shaped a bit like a rubber stamp. You simply press it onto your phone screen, and the ticket is marked as used. I had never seen a system like this before.


Tip: you will need mobile data to open your e-ticket at the pier. An eSIM such as Airalo is the easiest option for visitors.
On board the Emeraldas
I rode the Emeraldas. Its silver, spaceship-like exterior was designed by Leiji Matsumoto, the manga artist famous for Galaxy Express 999. The interior is by the architect Takato Tamagami, who made the front cabin feel like a riverbank, with curving benches and counters instead of rows of seats.


There is plenty of seating, so you will not have to stand. If you want a table or a window seat, though, join the line at the gate about 15 minutes before departure. The Emeraldas also has three private compartments, available for an extra charge of roughly ¥3,000–4,000. Check availability when you book.

You are welcome to bring food and drinks on board. Pick something up at a convenience store or fast-food shop near the pier and enjoy a picnic on the river. The cabin is air-conditioned and mostly enclosed, so the trip is comfortable in both summer and winter.
The rooftop deck opens once the crew have it ready, usually some time after departure. Up there you are much closer to the bridges and the view is wider. In spring and autumn it is wonderful.


Under the bridges
Between Asakusa and Tokyo Bay, the boat passes under more than ten bridges, and you get to see their undersides, which you would never notice from the street. Each one has a different shape and structure, and many carry a story about how Tokyo grew. Three stood out for me.
Ryogoku Bridge: born from a great fire
In the early Edo period, the shogunate allowed only one bridge across this river, for defense. In 1657, the Great Meireki Fire swept through Edo. With no way across the river, huge numbers of people were trapped, and the death toll is said to have reached around 100,000.
Ryogoku Bridge was built soon afterward, in 1659 (some sources say 1661), as an escape route. Its name, “Bridge of Two Provinces,” comes from the river once marking the border between Musashi and Shimousa provinces. Open spaces were cleared at both ends to stop fires from spreading. These firebreaks soon filled with food stalls and street shows, and became one of Edo’s liveliest entertainment districts.
Katsushika Hokusai, the artist of The Great Wave, also painted this spot. In his series Thirty-six Views of Mount Fuji, a crowded ferry crosses the river at sunset, with Ryogoku Bridge stretching behind it and Mount Fuji on the horizon. The ferry is long gone, but you are floating on the same river.


Shin-Ohashi Bridge: the bridge Van Gogh painted
Soon after Ryogoku comes Shin-Ohashi Bridge. In 1857, Utagawa Hiroshige depicted the bridge in a sudden summer shower in his series One Hundred Famous Views of Edo. Thirty years later in Paris, Vincent van Gogh was so taken with the print that he made his own painted copy, Bridge in the Rain (after Hiroshige). The bridge you pass under today is a modern one, but the river view is the one that crossed the world.


Further downstream, look out for Kiyosu and Eitai Bridges. Both were built after the Great Kanto Earthquake of 1923 destroyed much of the city, and both were modeled on bridges over the Rhine in Germany. First a great fire, then a great earthquake: Tokyo has rebuilt itself again and again, and you can read that history in its bridges.

Kachidoki Bridge: a gate to the sea
Kachidoki Bridge felt different from the moment it came into view. Two massive steel arches stand on either side of the river, with heavy stone piers between them, like a great gate guarding the way to the sea. Its name, meaning “a shout of victory,” comes from a ferry that once crossed here, named in 1905 after a victory in the Russo-Japanese War. And the gate-like look is no accident: the bridge was planned as a grand entrance for an international exposition scheduled for 1940, which was never held.
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Kachidoki is also a bascule bridge. Its center once split in two and rose like a pair of wings to let large ships pass, about five times a day at its peak. As river traffic fell and car traffic grew, it opened for the last time in 1970. When you pass beneath it, look closely at the middle of the deck. You can still see the seam where the two halves were meant to part. It was one of my favorite moments of the trip. In 2007, the bridge was designated an Important Cultural Property of Japan.
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Just past Kachidoki, work is beginning on the former site of the Tsukiji fish market, which moved to Toyosu in 2018. A large stadium and a new waterfront district are planned there for the 2030s. Then the river opens into Tokyo Bay, and the boat slips under Rainbow Bridge on its final approach to Odaiba.


Arriving in Odaiba: an architect’s skyline
As you approach Odaiba Seaside Park, look for the building with a giant silver sphere. This is the Fuji TV headquarters, completed in 1996 and designed by Kenzo Tange. He was one of Japan’s greatest architects and won the Pritzker Prize. His other works include the Tokyo Metropolitan Government Building and St. Mary’s Cathedral in Tokyo.
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And here is a nice coincidence. Right across from Kaminarimon, where this trip began, stands the Asakusa Culture Tourist Information Center, designed by Kengo Kuma, the architect of Japan’s National Stadium. Two generations of Japanese architecture bookend a single boat ride.
Another option: the Tokyo Mizube Line
TOKYO CRUISE is not the only way to sail from Asakusa to Odaiba. The Tokyo Mizube Line, run by the Tokyo Metropolitan Park Association, also connects the two. Its old boats were retired in January 2026, and service resumes on 17 October 2026 with a new boat, the Raiden.
Here is the interesting part. The Raiden is a disaster-response vessel built by the Tokyo Metropolitan Government. In an emergency, it carries supplies and people along the rivers. On ordinary days, it carries sightseers like you. After a trip past bridges born from fires and earthquakes, that feels like a fitting end to the story.
- Pier: Nitenmon Pier, about a 5-minute walk upstream (north) from the TOKYO CRUISE pier
- Route: Nitenmon → Ryogoku (short stop) → Odaiba Seaside Park, about 65 minutes
- Departures: 10:40, 13:20 and 16:00 from Nitenmon, mainly Wednesday to Sunday
- Fare: ¥2,000 adults / ¥1,000 children
It is far less known among visitors, so it is usually much less crowded. The trade-off is fewer departures, so check the official timetable before you go.
Good to know before you go
- Book ahead. Direct boats to Odaiba are limited, and same-day tickets often sell out.
- Arrive early for good seats. Join the line about 15 minutes before departure.
- Bring snacks. Food and drinks are allowed on board.
- Check the weather. Boats can be cancelled in bad weather, and the rooftop deck opens only when conditions allow.
- Maintenance days. Each boat has regular days off for maintenance, so check the timetable for your date.
- Two operators, two piers. TOKYO CRUISE and the Tokyo Mizube Line leave from different piers. Make sure you go to the right one.
Getting there
- TOKYO CRUISE Asakusa Pier: 1 minute on foot from Exit 4 of Asakusa Station (Tokyo Metro Ginza Line and Toei Asakusa Line) and from the Tobu Line station
- From Odaiba Seaside Park, the Yurikamome line takes you back to central Tokyo across Rainbow Bridge. Here is how to ride it, and how to get the front seat.
Book your trip
Book directly with TOKYO CRUISE
The simplest option is to book your seat on the official TOKYO CRUISE website, which has an English page. You pay only the regular fare, and your e-ticket arrives by email.
Water bus tickets are also sold on GetYourGuide. Note that this ticket is sold by a travel agency, not by TOKYO CRUISE itself. You cannot choose your boat, so you may not ride the Emeraldas, and you board with a special link sent the day before rather than your booking number. Prices and conditions may change, so compare with the official site before you book. For most visitors, booking directly is simpler.
Explore Asakusa before you sail
The pier is only a few minutes from Senso-ji, so if you have time before your boat, see the temple district with a guide first. This two-hour walking tour with an English-speaking guide starts beside Kaminarimon and takes you along Nakamise Street to Senso-ji and into the back streets, with some street food along the way. Prices may change, so check the details before you book.
Prefer a guide?
If you would like someone to explain the sights as you go, this private tour with a government-licensed, English-speaking guide combines a water bus ride with three or four stops of your choice, such as Senso-ji, Ryogoku Kokugikan, Hamarikyu Gardens and Odaiba. It takes about six hours, and only your own group joins.
Where to stay
Hotel Gracery Asakusa
Why choose: About 200 meters from Kaminarimon and a 3-minute walk from Asakusa Station. You can walk to the pier in minutes, and Senso-ji is right on your doorstep for an early-morning visit before the crowds arrive.
THE GATE HOTEL Ryogoku by HULIC
Why choose: A riverside hotel in Ryogoku, a little away from Asakusa but right on the theme of this trip. It stands on the Sumida River near Ryogoku Bridge, about a minute’s walk from the Ryogoku pier used by the Tokyo Mizube Line. Some rooms look out over the river or the Ryogoku Kokugikan sumo arena, and the guest-only terrace on the 9th floor has views of the river and Tokyo Skytree.
KOKO HOTEL Residence Asakusa Tawaramachi
Why choose: A 2-minute walk from Tawaramachi Station on the Ginza Line, one stop from Asakusa and a direct ride to Ueno and Ginza. Rooms come with a kitchen and a washer-dryer and sleep up to six, which makes it a good base for families and longer stays.
Next time
Heading back? Ride the Yurikamome over Rainbow Bridge from Odaiba to Shimbashi. Before you board, look out for the old stone fort that gave Odaiba its name.
This trip ended with two great architects, Kenzo Tange and Kengo Kuma. In the next series, we will look at their buildings more closely and explore how modern Japanese architecture shaped the Tokyo skyline.
Photos: Aozora Walks unless otherwise noted. Ryogoku Bridge: Ryu ohsako / Wikimedia Commons, CC BY-SA 4.0. Shin-Ohashi Bridge: Jmho / Wikimedia Commons (public domain). Eitai Bridge: jmho / Wikimedia Commons (public domain). Katsushika Hokusai print: The Metropolitan Museum of Art (CC0). Utagawa Hiroshige print: National Diet Library Digital Collections (public domain).



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