See all the shades of the U.K. on this 10-day itinerary, with rare stops in small ship-only ports like Swansea and Fort William along with can’t-miss places like Edinburgh and Dublin. Explore the Jurassic Coast with its breathtaking St Michael’s Mount, and sample a ubiquitous pasty as you discover the unique Celtic heritage that separates Cornwall from the rest of England. Ponder neolithic standing stones and the jagged basalt pillars of the Giant’s Causeway, ride a steam train across the iconic Harry Potter bridge with visions of Hogwarts in your head, and explore Edinburgh’s history-laden Royal Mile in the shadow of the iconic castle. If you’re a garden fan, fasten your seatbelt, because the British Isles erupt into a glorious fanfare of color and nearly every port you’ll visit features one or more eye-popping choices: the Royal Botanical Garden in Edinburgh and the National Botanical Garden’s famous Rose Garden in Dublin to name a few. Depending on the departure, you will also either overnight in Paris with time to check "must sees" off your list, or end your voyage in Amsterdam with its charming canals, historic buildings, and museums – a cherry on an already amazing journey.