The Forbidden Cave

Character of https://www.deviantart.com/foreverlastingartist
Timelapse video will be added some day. :)

References:
https://sta.sh/019m90tyncju
https://i.pinimg.com/564x/08/25/30/082530fe443e7b539ef3fd102aa64983.jpg
https://www.unesco.at/fileadmin/Redaktion/Wissenschaft/GeoHydro/Geopark/GP_Karawanken_Obir_Tropfsteinhoehlen.jpg