BSU

The Balkan Speleological Union (BSU), founded in 2002 in Vratza, Bulgaria, unites national speleological organizations across the Balkans. Headquartered in Sofia and a member of the International Union of Speleology, we promote cave exploration, research, conservation, and rescue.

Our mission is to connect cavers from countries including Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Greece, Montenegro, North Macedonia, Romania, Serbia, Slovenia, and Turkey through joint expeditions, training, and events like the Balkan Cavers' Camp.

We strive to protect the unique karst environments of our region while fostering knowledge, skills, and lasting friendships—journeying beneath, bonding beyond.