longstanding formation

darkness cave night formation reflection light terrain person rock photograph mythology blue man walk ice austria's exploring unbelievable water frozen austria europe germany portrait shadow freeze winter actric slippery icecave old nature adventure explore exploration travel tour tourism destrination cold vacation remote landscape scenics geology geologic mineral dwelling blizzard snow polar climate spot mountain climb walks inside features conservation environment Earth planet unknown secret underground melt springwater caveman explorer lamp feature mold historic icicle dark