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Agentura ochrany přírody a krajiny České republiky
Česká informační agentura životního prostředí (CENIA)
Česká geologická služba
Česká inspekce životního prostředí
Český hydrometeorologický ústav
Správa jeskyní České republiky
Správa Krkonošského národního parku
Správa Národního parku a chráněné krajinné oblasti Šumava
Správa Národního parku České Švýcarsko
Správa Národního parku Podyjí
Státní fond životního prostředí České republiky
Výzkumný ústav vodohospodářský T. G. Masaryka
Výzkumný ústav Silva Taroucy pro krajinu a okrasné zahradnictví, v.v.i.

Zbrašov Aragonite Caves

The caves are situated in the pictureresque valley of the Bečva river near the spa Teplice nad Bečvou. This is a unique cave system of European significance created by simultaneous activities of atmospheric water and warm mineral water, springing from great depths in the limestone area. The unique decorations of the caves contain aragonite, raft stalagmites and sinter spheric coating, reminding of doughnuts. The bottom levels of the caves are parmanently filled with carbon dioxide. The caves are the warmest underground areas of the Czech Republic, with permanent temperature of 14°C, which remains stable throughout the year. The system was discovered in 1912 and made accessible to the public in 1926. Not far from the caves there is the deepest abyss of the Czech Republic called „Hranice Abyss“. Its dry section, which can be seen, is -69.5 m deep. The depth of the water-filled section was verified by the latest measurement in 2016 to be another -404 m. The total depth, as measured so far, is -473.5 m, but the bottom has not been reached yet. The Hranice Abyss is now also the deepest underwater abyss in the world.