

International Year of Caves and Karst
Also known as
IYCK
Observed
the year 2021
Dates
Founded by
Hashtags
Sources
International Year of Caves and Karst, also known as IYCK, was not observed recently. It was observed the year 2021 in 2021.
International Year of Caves and Karst, also known as IYCK, was not observed recently. It was observed the year 2021 in 2021.