I climbed the Eiger back around 1991. It is really a beautiful area around Grindelwald. I would also recommend Zermatt near the Matterhorn.
we have that planned, too. glacier express. Staubbach falls. 8 days total.
Any suggestions on “must see” sights in the Alps? We have 3 nights in Grindelwald, 3 nights in Zermatt, overnight in St. Mortiz, and 3 nights in Cortina. We’ll go to the Lauterbrunnen Valley, Jungfraujoch, Gornergrat, Riffelsee Lake, Tofana.