
Guida
Doai Station, located in Minakami Town, Gunma Prefecture, is a railway station with an incredibly unique structure. Its most striking feature is the steep staircase consisting of 462 steps, spanning an elevation difference of approximately 70 meters between the station building and the platform. Because of this, it has long been affectionately known as the 'Mole Station of Japan.' The massive, tunnel-like space leading deep underground provides a sensation of entering another world. It is not merely a transit point, but a world-class railway heritage site where the structure itself is the destination.
Doai Station has a long history, having opened in 1936. There were times when it was bustling with climbers heading to Mt. Tanigawa; records show that during the 1960 opening of the mountain climbing season, the platform was filled with people arriving via night trains from Ueno Station. In the past, it was even common for climbers to use the stairs for a warm-up race. While passenger numbers decreased following the opening of the Joetsu Shinkansen and the Kan-etsu Expressway, the station remains a culturally significant site. Its unique architecture is closely related to the civil engineering heritage of Japan.

The greatest highlight is the 462-step staircase connecting the station building to the underground platform. As you descend step by step, you feel yourself diving deep into the earth. Once you reach the bottom, a massive, tunnel-like underground space unfolds, offering an overwhelming sense of scale. The rugged, industrial structure that evokes railway history, combined with the profound silence and unique atmosphere of the underground, provides an experience unlike any other station. The steepness of the stairs and the vastness of the underground space make it a highly popular subject for photography.
While the unique structure can be enjoyed in any season, visiting during the summer or autumn—when climbers are active—allows you to enjoy the surrounding nature. However, please note that train services are limited, so check the schedule carefully. During bright daylight hours, the depth and structure of the stairs and the underground space are most visible, making it an ideal time for photography. Since temperatures and humidity can fluctuate significantly, be prepared for the specific environmental conditions of the underground space.

At Doai, the act of climbing and descending the stairs becomes an activity in itself. Completing the 462 steps brings a unique sense of accomplishment. For railway enthusiasts, seeing this specialized structure firsthand is a highly valuable experience. Additionally, since the area is a gateway to hiking routes like Mt. Tanigawa, the station serves as a perfect starting or ending point for a mountain trekking journey.
The area around Doai Station is dotted with spots where you can feel rich nature and history. It serves as an access point for the Mt. Tanigawa area and offers a glimpse into the atmosphere of historic post towns. As part of Minakami Town, a famous hot spring area, traveling through this station allows you to deeply experience the nature and culture of Gunma. You can easily combine a visit here with other local sightseeing plans.
Since the main activity involves climbing and descending stairs, comfortable walking or athletic shoes are mandatory. Avoid heels or sandals. As the underground space is sensitive to temperature and humidity, wear clothing that is easy to layer.
Payment for train-related services is typically via cash or transport IC cards. It is recommended to carry cash for smooth transactions.
English-language signage and staff support may be limited. It is helpful to have a translation app or a written note ready.
No advance reservation is required to use the station, but it is essential to check the train operating schedule in advance.
Photography of the station structure and scenery is permitted, but please be considerate of other passengers and avoid obstructing train operations.
Due to the high number of stairs, the station is not accessible for wheelchairs or strollers. Please prepare accordingly for the steep inclines and steps.