Leaving Zermatt, we travel by train down the Mattertal valley to Visp, where the valley opens into the broader Rhône corridor. From Visp we turn north through the Lötschberg Base Tunnel—at 34.6 km (21.5 mi), one of the world's longest railway tunnels—emerging on the northern side of the Alps. The landscape shifts dramatically from the dry, south-facing Valais slopes to the lusher, wetter climate of the Bernese Oberland.
We continue along the shore of Lake Thun to Spiez, where the castle's medieval tower overlooks the turquoise waters, then proceed to Interlaken. This resort town occupies a narrow plain between Lake Thun and Lake Brienz, with the Jungfrau massif rising directly to the south. The town's name literally means "between lakes," and its strategic position has made it a tourism centre since the early 19th century, when British visitors began arriving to explore the surrounding mountains.
We pause here for a break before continuing to Grindelwald. This traditional alpine village lies in a broad valley beneath the north face of the Eiger, surrounded by the peaks of the Bernese Alps. Grindelwald sits at 1034 m (3,392 f) and has served as a base for mountaineers and walkers since the golden age of Alpine exploration in the mid-19th century.
Time and weather permitting, we may visit the Trümmelbach Falls this afternoon—a series of ten glacier-fed waterfalls inside the mountain, accessed by tunnel lift. The falls carry the meltwater from the Eiger, Mönch, and Jungfrau glaciers, moving up to 20,000 litres of water per second during summer.
Overnight in Grindelwald.
 
Included Meal(s): Breakfast and Dinner