boulder forest green hill landscape mountain natural nature outcrop peak remote rock rocky Sardinia view wild wood canada destination direction hike north america trail travel Trek vignette walk boats calm cliff dinghies fjord lake norway norwegian peaceful reflection still summer water blue boat coast coastline danger hazard lighthouse ocean promontory sea shore speedboat warning ancient architecture background cobblestone elements England english flint Great Britain historical norfolk old stone texture wall access ending Greece Greek mediterranean opening road seascape track alpines diminutive flowers garden Hypoxidaceae pink plants Rhodohypoxis rockery small stones tiny America aquamarine clean clear cold fast flow pool pure river transparent conifer tree Body of water Natural landscape nature reserve rocks stream water resources watercourse waterfall