UNESCO Sites › Ostrava
The Hranice Abyss
The Hranice Abyss, a UNESCO site, is one of the deepest underwater caves in the Czech Republic, located near Ostrava. This natural wonder captivates visitors with its stunning geological formations and rich biodiversity. Guided tours are available, providing a thrilling experience for adventurers and nature lovers alike.
Address: Hranice 1, Ostrava, Ostrava
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