DUN NA CUAICHE, INVERARAY THIS is a great, short, steep walk up to an 18th-century watchtower above Loch Fyne, offering stunning views. It will get the blood pumping but can be muddy so boots are needed as well as water and snacks. You are going up relatively high so remember also to take a spare sweater and waterproof. This waymarked route, following blue arrows, starts in the shadow of Inveraray Castle – the neo-Gothic pile that is the ancestral home to the dukes of Argyll. After turning away from this and crossing an ornamental bridge over the River Aray, a steep climb begins. It is hard going all the way up to a clearing, but the effort is worth it for the amazing view at the top of Dun na Cuaiche, down Loch Fyne and across Argyll. To the east you can see the Arrochar Alps. From the watchtower you also get a bird's-eye view back down to the castle.