Optional activities

Wine tasting "Grünhag"

An experience for 12 to 35 people.

The "Grünhag" vines of the organic vineyards Bosshart & Grimm are within 5 minutes walking distance from the tunnel. The tasting session is therefore a wonderful add on to 
many of the group activities underground.

Fungus-resistant PIWI grape varieties, White Sapphira, St. John's, Solaris and Red Cabernet Jura, which are otherwise rarely found in our area, can be tasted here.