"Our world’s caves are places of wonder, mystery and majestic beauty. Show caves around the world are embracing their role in protecting and preserving caves and providing a place for people to learn about these special, natural, cultural and historical resources.

Show caves also play another important nature tourism role of sustainable economic development, providing jobs, and helping the economy of their regions.”


The International Show Caves Association (I.S.C.A.) was founded in November 1990 and set up its central office in Genga, Italy. After the first Consitutent Assembly held in Frasassi (Genga Ancona, Italy) in November 1989, important events have contributed to the development and consolidation of the association.

Definition of a show cave

A show cave is defined as a natural occurring void beneath the surface of the earth that has been made accessible to the public for tours.


ISCA Newsletter September & October 2021

01. September 2021 Moya Juan José Tiscar

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ISCA Newsletter July & August 2021

01. July 2021 Moya Juan José Tiscar

Download the latest ISCA newsletter (July and August, 2021) and share it with other cave enthusiasts.

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International Day of Caves and the Subterranean World

04. June 2021 Gazik Peter

As every year, the 6th June is the day ISCA celebrates the International Day of Caves and the Subterranean World together with national cave associations and cave enthusiasts worldwide. For the first time it is during the International Year of Caves and Karst, launched by the International Union of Speleology (UIS). You are welcome to see the press release issued by the president Brad Wuest.

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The Institute of Nature Conservation and Forests in Portugal to support the IYCK

06. May 2021 Jorge Nuno André Querido

The Portuguese Presidency of the Council of the EU and ICNF are hosting a joint virtual event to celebrate the International Day for Biological Diversity (on 22 May) in the context of the relevant information that caves contain for the future of humankind.

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ISCA Newsletter May & June 2021

30. April 2021 Moya Juan José Tiscar

The latest ISCA newsletter is now available to download in PDF format. The International Year of Caves and Karst 2021 brings us a lot of new materials. Enjoy and let us know your feedback!

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New article on cave lighting

08. April 2021 Gazik Peter

Our friend, former director of the Aggtelek National Park wrote an interesting article full of ideas on the proper cave lighting. He is pleased he can share it with our community.

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ISCA Newsletter March & April 2021

04. March 2021 Moya Juan José Tiscar

Read our latest announcements and learn more about the International Year of Caves and Karst 2021 and many other events.

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Opening of the International Year of Caves and Karst

25. January 2021 Gazik Peter

Dear cave friends, The International Union of Speleology (UIS) planned an Opening Ceremony at the occasion of The International Year of Caves and Karst (IYCK), which was held virtually on 26 January 2021 starting at 15:00 CET (Paris) time (with recording on a YouTube channel linked from this news). A celebration of the IYCK will be held later at UNESCO, when the pandemic is over.

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