Where does the water for whisky come from? 知名威士忌水源來自哪裏？

Many learners, in their early days of learning about Scotch whisky
will be exposed to the expression ‘’the three elements of whisky‘’.
They are: raw materials, yeast and water.
It seems that these three things should be very important.
Really?
很多學員早期學習蘇格蘭威士忌，
會接觸到‘’威士忌三要素‘’這種說法，
分別是：原料，酵母和水。
看來這三點應該是很重要的吧…