Hike a high and wild path along the base of the giant Nordwand (North Wall) of the Eiger, nemesis of innumerable mountaineers.
Stand at the edge of the 6500-foot high lake at Bachalpsee, with the Jungfrau reflected in the silvery surface.
Listen to the cracking of a glacier as you hike above it to lunch at a remote mountain restaurant.
Take a train through a mountain to Jungfraujoch, the highest train station in Europe, then walk through an art museum where each piece on display is carved from the ice inside the glacier.
Or take a break from hiking for an optional tandem paraglider ride or a mountain biking day, ascending a mountain by lift or by pedal-power, then coasting back down, past waterfalls and fields of wildflowers.