Witch Well in Northern Estonia in Harjumaa

The Witch's Well in the Northern Estonia karst area is in reality a karst spring that starts gushing forth during the spring floods when the underground Tuhala River can no longer carry on all the water quickly enough. The well is only 2.5 m deep, but under pressure from the river water it can spurt water up to half a metre. Under the pressure the well starts to 'boil', as a result, more than 100 litres of water flow out every second.

A legend says that the Witches' Well will boil when the Tuhala witches are whisking