Prices on regular opening days (Thursday, Saturday, Sunday):
Small groups of up to 10 people: CHF 150.- (incl. admission)
Groups of up to 20 people: CHF 300.- (incl. admission)
Prices outside regular opening days (Monday, Tuesday, Wednesday, Friday)
Small groups of up to 10 people: CHF 225.– (incl. admission)
Groups of up to 20 people: CHF 450.– (incl. admission)
Larger groups will be split into smaller ones and guided in parallel.