The Wengernalp Railway (WAB) links the towns of Lauterbrunnen, Wengen and Grindelwald with Kleine Scheidegg at 2,061 metres above sea level. Its length of 19,114 metres makes it the longest cog railway in the world. The most travelled section of the route is between Lauterbrunnen and Wengen. The train provides transport for passengers and ensures a supply of goods for the car-free resort. In addition to the Wengen development, the WAB assumes the role of feeder line to the Jungfrau Railway. This means that it transports over 1,800,000 visitors every year to Kleine Scheidegg and back. Ten modern low-floor panorama trains with a capacity of 152 seats each have been running on the Grindelwald-Kleine Scheidegg route since 2005 and on the Lauterbrunnen-Kleine Scheidegg route since 2014. With the current rolling stock, the travel time from Grindelwald – Grund to Kleine Scheidegg is 24 minutes, and from Lauterbrunnen to Kleine Scheidegg it is 42 minutes. The trip to Wengen from Lauterbrunnen takes 12 minutes.
In 1890, the authorities granted the concession for construction of the Wengernalp Railway. The narrow-gauge cogwheel railway to Kleine Scheidegg was opened three years later. The old stretch between Lauterbrunnen and Wengen had a gradient of 250 per mille and was exposed to rock and ice falls, which is why a longer, less steep stretch had been built by 1910. In 2008 and 2009, the old tracks were removed and the terrain partially restored to its natural state.
