Banff bank Bow Falls canada channel conifers current danger dangerous fierce flow foam natural nature rage rapids river rocks trees violent water waterfall beach bleached deserted driftwood log ocean peace sand scene sea seashore seaview shore summer sun sunny tranquil view weathered wood America Beauvert blue calm cloud conifer green hill idyllic jasper lake landscape mountain peaceful reflection sky cliff destination direction empty forest highway Icefields Parkway mountains open range road route snow tarmac travel tree altitude bend exercise glacier height high hiking path Rockies sunlight track trail Trek turn walk walking holiday lakeside leisure Rocky Mountains vacation bare bleak craggy difficult hard panorama peak rock rough shale summit austere dour harsh ice silt stark stern chill cold forbidding freezing frozen icy severe shadow snowy steep boulder clear evening north america ripples stone transparent