Ardvreck Castle and Stac Pollaidh, Loch Assynt, Ross and Cromarty, Highlands, Scotland, United Kingdom

stac pollaidh ardvreck castle loch assynt scotland highlands sutherland landscape nature ruins mountain scenery historical site outdoor travel tourism hiking adventure exploration rustic geology cloud water reflection rocky terrain greenery wild picturesque heritage culture lake beauty serene peaceful iconic remote unique sunlight shadows trails ancient timeless scenic views walks activities