Taupolcao belongs to the Lake Balaton area, but not by the lake. There is a place to visit and explore underground caves. The most amazing thing is that it belongs to the karst landform, which generally does not have water, but there are many underground lakes in this area. For example, the “Crystal Garden” known as the Hungarian geological wonder is difficult to reach even for adventure experts, which is the most beautiful underground lake in Hungary. The water at the beginning was not deep, and it was crystal clear. It was estimated that if it was not for rowing and swimming or wading to explore, it would be possible to drink while walking. Searchlights have been placed in many places in the cave so that you can explore the underground river without headlights or additional lighting. Probably because of the relatively high water level, the top of the cave is particularly low. But a small hole in front turned, and suddenly the top of the hole rose again. The water suddenly became very deep, although the bottom of the water also hit the spotlight, but the light can not shine the place is still very dark, full of mystery.