big cave and deep river gorge with flowing water and frozen waterfall, johnston canyon, banff national park, canada

alberta amazing artic awesome azure banff beautiful blue canada canyon cave chilly clouds cold deep emapty empty flowing free freedom freeze freezing frost frozen gorge hole holiday ice icecave icy johnston landscape landscapes melt melting national natural nature nice outdoor park polar river rocks scenery scenic sky snow spectacular sun tourism tourist travel traveling vacation valley water waterfall weather winter with wonderful