The Sanriku Railway: The Coastal Line That Came Back

In March 2011, a little railway on Japan's northeast coast lost stations, bridges, and track to the tsunami, and within days it was running trains again. The Sanriku Railway is a third-sector line, jointly backed by local government and private investors, along Iwate Prefecture's rugged Sanriku coast, and it has become one of Tohoku's best-known symbols of recovery. Riding it today pairs dramatic coastal scenery with a first-hand look at how the coast rebuilt.

Quick Answer — What Is the Sanriku Railway?

The Sanriku Railway is a small third-sector railway running along Iwate's rugged Sanriku coast in northeastern Japan. Devastated in the 2011 earthquake and tsunami, it was rebuilt section by section and became a national symbol of recovery. Its Rias Line runs about 163 km between Sakari and Kuji and is not covered by the nationwide Japan Rail Pass.

The 2011 Story

The Sanriku Railway was badly damaged on 11 March 2011, yet part of it reopened five days later, and the whole network was running again by April 2014. The tsunami, which claimed thousands of lives in Iwate, damaged the line at around 300 locations and swept away stations, bridges and close to 6 km of track.

• 16 March 2011: Free trains resumed between Kuji and Rikuchu-Noda for residents.
• April 2014: The southern route reopened on 5 April and the northern route on 6 April, helped by new railcars funded by Kuwait.
• 23 March 2019: JR East rebuilt its wrecked Yamada Line section between Miyako and Kamaishi and handed it over, joining everything into one Rias Line.
• 2019 to 2020: Typhoon Hagibis damaged the line that October, and full service returned by spring 2020.

Locals have described those first free trains as a sign of hope more than a timetable. The Sanriku Railway is widely cited as an example of railway recovery after the tsunami, though many coastal communities remain smaller than before 2011.

Riding the Rias Line Today

The Sanriku Railway Rias Line runs roughly 163 km along Iwate's Pacific coast from Sakari in Ofunato to Kuji, and riding end to end takes around four and a half hours. Many visitors ride only part of this Sanriku coast train route, such as the northern stretch between Miyako and Kuji.

The name comes from the rias, drowned river valleys that give this coast its jagged headlands and deep inlets. Trains dive into tunnels, then burst onto viaducts above coves, fishing harbours and towns rebuilt on higher ground. Between Shirai-Kaigan and Horinai stations, trains slow down on the Osawa Bridge so passengers can photograph the Pacific below.

Keep these practical points in mind before boarding:

• Trains are one- or two-car diesel railcars, a world away from the Shinkansen end of the train types you will meet in Japan.
• Services often run one to two hours apart, with some gaps of over two hours, so check timetables before hopping off.
• The Sanriku Railway does not accept IC cards such as Suica, so carry cash for fares.

The Kotatsu Train and Friends

The Sanriku Railway's kotatsu train is a winter sightseeing service between Kuji and Miyako whose seats are set around kotatsu, low tables with a heated quilt underneath. It usually runs on weekends and holidays from around early December into March, but dates and prices change every season, so confirm them first.

In recent seasons, it has made one round trip a day, taking about 1 hour 40 minutes from Kuji to Miyako, at around ¥3,000 per adult section. Seafood boxes could be pre-ordered, and a masked, straw-caped namomi from local folklore, similar to Akita's namahage, usually bursts into the carriage.

Inside, four-seat kotatsu tables fill a wood-panelled carriage, giving the ride the feel of a countryside living room. A retro Western-style kotatsu train has also run between Miyako and Kamaishi in recent winters, alongside occasional event trains.

The kotatsu train sits alongside the Tsugaru Railway's coal-stove train in Aomori as one of the north's heated winter rides, and pairs naturally with other winter rail journeys through Japan's snowy north.

Getting There

To reach the line, take the Shinkansen to a gateway city, then a JR local line to the coast, then the Sanriku line itself. The Japan Rail Pass covers the JR legs, while the Sanriku Railway fare is paid separately.

• Kuji: Take the Tohoku Shinkansen to Hachinohe (about three hours from Tokyo), then the JR Hachinohe Line for roughly two hours.
• Miyako: Take the Shinkansen to Morioka, then the infrequent JR Yamada Line for around two and a half hours, or the quicker 106 bus (about 1 hour 40 minutes to 2 hours 15 minutes), which the pass does not cover.
• Kamaishi: Take the Shinkansen to Shin-Hanamaki, then the JR Kamaishi Line for typically one and a half to two hours.

An adult one-way ticket between Kuji and Miyako costs about ¥2,080, though fares can change. If Tohoku is your focus, the JR East Pass (Tohoku area) also covers the Sanriku Railway.

Whether a nationwide pass, a regional JR pass, or point-to-point Shinkansen tickets for the Tokyo–Kyoto–Osaka leg works out better depends on how far beyond Tohoku you are going.

Why Ride It

Riding the Sanriku Railway is a quiet way to support the coast, since tickets, lunch boxes, and souvenirs support a railway and towns that still rely on visitors. Many travellers also come for a television connection.

Many Japanese travellers first heard of the line through Amachan, the 2013 NHK morning drama whose fictional Kita-Sanriku Railway was based on the northern route, with Horinai Station playing Sodegahama Station. For those fans, it is still the Amachan train.

The Coast Itself

One of the most rewarding ways to see the Sanriku coast is to break the ride at two or three stations, mixing scenery such as Jodogahama with memorial sites where the 2011 story is told first-hand. Treat memorial sites as places of remembrance: speak quietly and follow guides' instructions.

• Jodogahama Beach, Miyako: White rock spires rise from calm water, about 15 minutes by bus from Miyako Station.
• Taro Kanko Hotel, Taro: This preserved hotel lost its first two floors to the waves and is about a 15-minute walk from Shin-Taro Station, with guided visits booked in advance.
• Kitayamazaki, Tanohata: These 200 m sea cliffs have viewpoints and trails, about 30 minutes by bus or a shorter taxi ride from Tanohata Station.
• Unosumai Tomosu, Kamaishi: This memorial and learning centre stands beside Unosumai Station.

Every stop on this list sits within the protected coastline, since Iwate's coast is part of the Sanriku Fukko National Park.

Buses and taxis are scarce at small stations, so a pocket Wi-Fi device makes checking connections easier.

An overnight stop in Miyako or Kamaishi brings early light over the water, and there is a range of hotels and ryokan across Tohoku to base yourself in.

FAQs

Below are answers to some questions travelers may have when planning their Sanriku Railway journey:

Q: What is the Sanriku Railway?
A: The Sanriku Railway is a small third-sector railway along Iwate's rugged Sanriku coast, devastated in 2011 and rebuilt into a national symbol of recovery.

Q: What happened to the Sanriku Railway in 2011?
A: The tsunami damaged it at around 300 locations, yet a first section reopened five days later and full service returned in April 2014.

Q: Is the Sanriku Railway covered by the JR Pass?
A: No, the nationwide JR Pass covers only the JR legs to the gateways, though the JR East Pass includes the Sanriku Railway.

Q: Where does the Rias Line run?
A: The Rias Line runs about 163 km along Iwate's Pacific coast between Sakari and Kuji, via Kamaishi and Miyako.

Q: What is the kotatsu train?
A: The kotatsu train is a winter weekend and holiday service between Kuji and Miyako with heated kotatsu tables, on dates that change each season.

Q: Do I need to book the kotatsu train in advance?
A: Yes, reservations are required, and in recent seasons, bookings closed five days before travel.

Q: How long does the whole Rias Line take?
A: End to end, it takes around four and a half hours.

Q: What is the connection to Amachan?
A: The 2013 NHK drama Amachan based its fictional railway on the northern route, filming Horinai Station as Sodegahama Station.

Q: Which section is the most scenic?
A: The northern stretch between Miyako and Kuji, with its cliffs and the Osawa Bridge, is a popular choice.

Q: Is it appropriate to visit tsunami memorial sites?
A: Yes, visitors are welcome at sites such as the Taro Kanko Hotel, provided they behave quietly and respectfully.