Based in Zapresic and aiming to promote speleology and related natural sciences among school children. Includes, history, project information, excursions and contact details.

Provides links to societies and clubs.

Founded in 1956 and coordinates work of clubs in Croatia. Offers education, publications and camps. Includes contacts. [Croatian and English].

Section of mountaineering group of Zagreb University and founded in 1954. Offers camps and expeditions. Includes history of SOV, photos and contacts. [Croatian and English].