Isumi Railway

We found the Isumi Railway by accident, the way you sometimes find the best things in Japan — scrolling too far into train enthusiast forums looking for something else entirely. Someone had posted a photo of a small yellow train cutting through a solid field of yellow flowers, and Lia, who has an unreasonable fondness for small regional trains nobody else seems to ride, decided on the spot that we were going to Chiba.

Fields of Rapeseed, a Train the Same Color

The Isumi Railway is a short, slow local line running through rural Chiba, and every March the fields alongside its tracks erupt into a solid, startling yellow as the rapeseed comes into bloom, timed roughly to overlap with the cherry blossoms along the same stretch — pink above, yellow below, an odd and beautiful combination that neither of us had planned for and both of us were thrilled by. The railway leans into the coincidence, running its canary-yellow single-car trains right through the middle of it, so that for a few weeks a year the whole landscape and the train itself seem to be wearing matching colors. We got off at a random stop with no real plan and just stood in a field for twenty minutes, doing nothing but looking.

The Moomin Train

Part of the line’s charm, and its small but devoted following, comes from a series of trains decorated with characters from the Moomin books, a partnership that feels wonderfully out of place on a rural Japanese branch line and yet somehow fits its gentle, slightly whimsical character perfectly. We happened to catch one on our second ride of the day — pale characters painted along the carriage sides, a cheerful mismatch against the plain countryside sliding past the windows. Lia, who grew up on the Moomin stories in France, spent the whole ride with her face nearly against the glass, unreasonably delighted by a decal on a single-car train in the middle of nowhere.

A Line That’s Stayed Small

What makes the Isumi Railway worth the trip, beyond the flowers, is how completely unbothered it is by being a tourist attraction. It survives mainly as a genuine local line, carrying schoolkids and elderly residents between small stations with wooden platforms and no ticket gates, the kind of nearly-empty branch line that most visitors to Japan never think to look for. We rode it end to end over the course of an afternoon, hopping off at whichever station looked interesting, walking short stretches between towns, and never once felt like we were competing with a crowd for the view. It’s slow travel in the most literal sense, and after months of bullet trains and packed platforms, that slowness felt like its own kind of luxury.

Getting There

The Isumi Railway connects at Ohara Station with the JR Sotobo Line, which runs from central Tokyo in around ninety minutes. From Ohara, the Isumi Railway itself is a separate, cheap local ticket you buy for the line specifically, with trains running at a relaxed, infrequent pace, so it’s worth checking the timetable before you go rather than assuming you can hop straight on. The rapeseed and cherry blossom overlap is a narrow window in March, so if that’s the draw, time the trip carefully and keep expectations flexible around exact bloom dates, which shift year to year with the weather.