The Spiez vineyards lie between 530 and 630 metres above sea level and are among the highest north of the Alps. Thanks to the choice of suitable and qualitatively convincing varieties as well as a favourable microclimate with Lake Thun as a heat reservoir and the Föhn wind, it is possible to produce finesse-rich, juicy and elegant wines within sight of the mountain icons Eiger, Mönch and Jungfrau. It is a labour-intensive crop, requiring 700 to 1000 hours of work per hectare each year. The grapes are vinified in the old walls of Spiez Castle.
The vintners from Spiez protect and shape the alpine cultural region between lake and mountain. With its prominent location by the bay, the vineyard landscape is an important local recreation area for the region. The park-like grounds are freely accessible all year round, open to hikers, pilgrims, joggers and walkers at any time.