Arrive in London and spend the morning in the countryside of Windsor, known for its royal heritage and grand estates. This afternoon, transfer to Portsmouth to embark on your journey around the British and Irish Isles.

Arrive in the Cornish port of Fowey (pronounced "Foy") this afternoon. Visit the Eden Project, a collection of immense eco-garden biomes set within a 34-acre bowl, celebrating sustainability and botanical innovation. Alternatively, experience the grandeur of the Estates of Cornwall on a visit to the houses of Pencarrow and Lanhydrock. For those wishing for a more relaxed afternoon, spend time on your own in the village of Fowey or join the field staff for an expeditionary outing in the area.

Revel in flourishing subtropical beauty at Tresco Abbey Garden, planted in the 19th century around the ruins of a Benedictine abbey in the Isles of Scilly. Today, it’s matured into a priceless botanical sanctuary for thousands of exotic species from across the southern hemisphere—from Brazil to New Zealand, Myanmar to South Africa. Yet here it is, on an islet just 28 miles off the Cornwall coast.

Arrive in this colorful port city on one of the world’s largest natural harbors, intimately tied to maritime history and the great Irish emigration. Visit the Cobh Heritage Centre and learn about the momentous events that took place here—from the 1912 departure of the Titanic to the successful rescue of passengers from the torpedoed Lusitania and the millions of Irish who departed these shores in search of a better life. Enjoy an afternoon of Irish traditions, from music to sports, with locals.

Over the next two days, enjoy the windswept landscapes of western Ireland. Be on deck as you sail past Skellig Michael, the protected Celtic Christian hermitage where beehive huts and the remains of a seventh-century monastery still stand. Then, get photo tips from the National Geographic Photography Expert as you sail past the uninhabited Blasket Islands, on which you can observe a wide array of birds, including storm petrels, shearwaters, terns, gulls, and auks. Your exploration continues on land through the southern corner of Ireland with its cozy local pubs, cultural centers, and country walks.

Visit the sacred island of Iona and its 13th-century abbey, long revered as a Christian pilgrimage site and believed to be where the Book of Kells originated. Several Scottish kings, including the actual Macbeth, are buried in the royal graveyard here. Later, weather permitting, explore uninhabited Staffa Island, famed for its perfect six-sided volcanic basalt columns and dramatic Fingal’s Cave. On Staffa, join one of the naturalists to learn about and observe a large puffin colony.

Explore the Outer Hebrides of Scotland, which boast incredible seabird colonies. Conditions permitting, you can make a landing at St. Kilda, a UNESCO World Heritage Site and nature preserve. Uninhabited since 1930, the traditional stone village left behind by the island’s final residents now lies in ruins. But active occupants do remain: a huge population of gannets, domesticated sheep now gone wild, puffins, and wrens.

The Shetlands are characterized by deep-seated cultural traditions and dramatic landscapes. Far north and near enough to Norway to speak Scottish with a Scandinavian accent, this 100-island archipelago has never been fully tamed by those who live here. Explore these rural islands with their mix of ponies, ruins, and windswept pastures.

Options this morning include a birdwatching trek in quest of Orkney’s remarkably varied birdlife or a walking tour of Kirkwall, Orkney’s capital and a showplace of ancient Viking history thanks to its proximity to Norway. Later, discover the Stone Age megaliths of the Ring of Brodgar and the 5,000-year-old stone slab village of Skara Brae. And step inside the majestic St. Magnus Cathedral, a sandstone landmark that took three centuries to build.

Start off the day with a panoramic drive through "the Granite City" before exploring Aberdeenshire’s countryside. Choose to visit a local Highland cattle farm, where you can learn about its award-winning products and practices. Or, dive into Highland traditions with a visit to the Gordon Highlanders Museum. Transfer back to the ship later this afternoon and enjoy your last evening at sea.

Disembark in Edinburgh after breakfast and transfer to the airport for your flight home.