https://en.wikipedia.org/wiki/Grindelwald_railway_station

Grindelwald railway station (German: Bahnhof Grindelwald) is a railway station in the village and municipality of Grindelwald in the Swiss canton of Bern. The station is the terminus of both the Berner Oberland Bahn (BOB), whose trains operate services to Interlaken Ost, and of the Wengernalpbahn (WAB), whose trains operate to Kleine Scheidegg via Grindelwald Grund

The BOB and WAB lines use different gauges, and there is no physical connection between them. However the trains operate from adjacent platforms within the same station. Trains of both lines enter the station from its western end. Counter-intuitively, the WAB commences its ascent to Kleine Scheidegg by descending steeply to Grindelwald Grund, where it reverses and commences its climb.