Opened in 1988 (Showa 63), this railway runs along the Isumi River in the eastern Boso Peninsula. Its 26.8-kilometer route has 14 stations, including the two terminal stations, and has long served as a means of transportation for local residents. Attractions nearby include spiritual sites such as Izumo Taisha Kazusa Church and Kuniyoshi Shrine, as well as sightseeing destinations such as the Natural Gas Memorial Museum and Otaki Castle. Ride the driver-only train, stop off along the way, and explore the many attractions along the line.
Various sightseeing express trains operate regularly on weekends and holidays.
Be sure to check out the ekiben station box lunches, a classic part of any train journey. They are sold at the shop in Ohara Station on Saturdays, Sundays, and public holidays. A limited number are available for same-day purchase, so calling ahead to reserve is recommended if you want to be sure of getting one. (Lunch box reservations: Kasaya Shoten, 0470-86-3535; reservations are accepted from 10 days in advance until 2:00 p.m. on Thursday of that week.)