Excursion to the underground of the colonnade

Under the colonnade floor there is a place for pumping, distribution and thermal regulation of the hot spring water. There are also spaces where the Karlovy Vary souvenirs are “growing” in the spring. A tourist trail has been put into operation in the old part of the spring underground since 2008. The tour starts with a geological model that will introduce you to the foundation of the Hot Spring Colonnade.