Dear Colleagues
We are happy to inform you that the web page of Hypogea 2019 - in Bulgaria is available at:
http://www.hypogea2019.org/and there you could find complete information for the event!
Please spread this information among caving community & your friends involved with this issue!
We wish you sunny and pleasant summertime!
Best regards
Alexey Zhalov
President of the Organising Committee
