This suggested walk commences at Kleine Scheidegg. From Grindelwald there is direct access via train – trains also travel to Kleine Scheidegg from the West (Wengen and Lauterbrunnen).
From Kleine Scheidegg the walk starts near the train line up to Jungfraujoch – this is walk no. 37 on the Jungfrau region hiking map (see link below). The walk climbs steadily uphill along an obvious path, at all times keeping fairly close to the train tracks and eventually reaching Eigergletscher station, the first station on the Kleine Scheidegg/Jungfraujoch line.
At the station, follow the platform downhill briefly before crossing both lines and following a path clearly signposted as ‘Eiger – Trail Alpiglen 2 h’. This is walk no. 36 on the Jungfrau region hiking map and is the official ‘Eiger Trail’ along the foot of the impressive and imposing Eiger North face. The track is again quite clear, with only the occasional patch of snow obscuring the path (these notes were written in June). In addition to the view of the Eiger, there are superb views in all other directions, and plenty of great locations for a break or lunch.
After negotiating the section at the foot of the north face the track starts to curve rather more steeply downhill and after a zig-zag section comes to a t-junction. Turning left, the track will soon arrive at Alpiglen Station. The suggested walk though follows the right turn (walk no. 25) and eventually arrives at Grindelwald.
The track goes through an attractive wooded section, with some repeated up and down sections before reaching a small hut and then turning more steeply downhill to reach Gletscherschlucht and a good place to stop for a beer.
From here there are clearly signposted paths back to Grund or Grindelwald.
Total walk time for me was around 6 hours (including breaks). Note that the last section of the walk from the t-junction through to Gletscherschlucht and then Grindelwald, is longer and more difficult than it looks on the map. If tired, take the shorter route to Alpiglen and then train back to Grindelwald.
The Jungfrau region hiking map is available free of charge from train and cable car stations in the area. I haven’t been able to find an online version, so have scanned the relevant part for this walk, click here for the pdf.