In the Calla Cascades area you will find the “Geysirhöhle”. Its walls are clad with real quartzite. The ceiling, in Petras Salgadas shale, is born by thick silver fir beams. Here in these surrounds you experience various different visual and physical stimuli: clouds of steam, changing light effects and soothing music. The highlight is the geyser, which keeps the air comfortably humid with its bubbling activity.