International Day of Caves and Karst

Frequency:
Every
Sep 13
Inception Year:
2026
Hashtags:
References:
caveskarstday.org
x.com/UNESCO/status/2099121039091392574
facebook.com/…/the-first-international-day-of-caves-and-karst-on…

International Day of Caves and Karst occurs each year on September 13th.

September 2026

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See Also:

National Caves and Karst Day