The sounds of bagpipes, drums and exploding fireworks echoing from the robust walls of Edinburgh Castle welcome you during the famous military tattoo. Enjoy privileged access to all the pomp and pageantry before discovering the Orkney Islands’ Neolithic history. Next, it’s to the UK’s northern tip, docking amid the Shetland Islands’ emerald-splashed cliffs. The thrilling scenery comes thick and fast - prepare for Iceland’s geothermal glory, think soaring volcanoes, gouged fjords and thrashing waterfalls.