bank cloud enigmatic fjord green hills lake mountains mysterious Natural landscape nature norway peaceful reflection sky tranquil water water resources colorful colourful lakeside light path posts quiet railing shade shadows shrubbery support vegetations walkway water's edge wooden colors colours danger decay environment environmental environmental problems harm harmful pollution Slime slimy sludge water weeds waterways weeds conservation ecology forest grass hike new zealand outdoor pool ramble river swing track tramp tree walk waterfall altitude canada destination direction downhill height high hiking landscape mountain Rockies snow sunlight trail travel Trek beautiful beauty clouds cold freeze freezing frozen ice loch scotland stark sun sunshine white winter beach bed bottom coast coastline ebb floor HDR island low Nyberg ocean rock sea stone summer tide beam blue blur calm clear dirty fall moody pier plant reed relax trees twigs wood life plain pond scenery wild wilderness wildlife