Lisbon to Edinburgh (Leith)

Lisbon, Portugal's enchanting capital, stands out for its rich history, stunning architecture, and vibrant culture. Must-try experiences include savoring local dishes like bacalhau à brás and pastéis de nata at Mercado da Ribeira. The best time to visit is during the spring or fall, when the weather is mild and the city is alive with festivals and events.

Vigo is Galicia's vibrant Atlantic port city, set along a dramatic ría with Celtic ruins, a storied naval past, and what may be Spain's finest seafood culture — from freshly shucked Arcade oysters at the Mercado da Pedra to smoky pulpo á feira in the old quarter. Visit between May and October, when long golden evenings illuminate the bay and the Cíes Islands beckon for a day trip to some of Europe's most pristine beaches.

Tresco is a privately managed island in the Isles of Scilly, twenty-eight miles off Cornwall, renowned for its extraordinary Abbey Garden housing twenty thousand subtropical plants and its pristine white-sand beaches. Must-dos include exploring the Abbey Garden and Valhalla shipwreck museum, swimming at Pentle Bay, and island-hopping to neighbouring Bryher and St. Martin's. Visit May through June for peak garden displays and uncrowded beaches.

St. Mary's is the gateway to the Isles of Scilly, a subtropical archipelago 28 miles off Cornwall where white-sand beaches, palm trees, and world-class seafood create an improbably exotic corner of England. Must-dos include Tresco Abbey Garden, island-hopping by boat, and dining on hand-dived scallops and local lobster. May through September offers the sunniest conditions in England.

Holyhead is Wales's maritime gateway on Holy Island, offering dramatic cliff walks to South Stack Lighthouse with its puffin colonies, plus access to Anglesey's Neolithic burial chambers and Edward I's Beaumaris Castle. Must-do experiences include tasting Halen Môn sea salt and lobster at coastal restaurants, exploring Bryn Celli Ddu's ancient passage tomb, and walking the Victorian breakwater. May through September is best, with summer bringing puffins and the longest days.

Skomer Island, United Kingdom is a distinctive port city where deep cultural heritage meets authentic local atmosphere, featured on itineraries by Ponant. Must-do experiences include walking the historic center to experience the layered architectural heritage, and seeking out the regional culinary traditions at a locally favored establishment away from the port area. The optimal time to visit is June through August, when summer months bring the warmest temperatures and longest days.

Pembroke is a Welsh castle town dominated by the massive birthplace fortress of Henry VII, set within the Pembrokeshire Coast National Park with its spectacular 300 kilometers of cliff paths and wildlife-rich shores. Must-dos include exploring the castle's Great Keep and Wogan Cavern, walking the coastal path, and spotting grey seals on offshore islands. May through September offers the best weather for castle visits and coastal hiking.

Lundy Island is a wild granite outpost in the Bristol Channel, managed by the Landmark Trust as a car-free, signal-free heritage escape with medieval ruins, dramatic cliffs, and England's first Marine Nature Reserve. Must-dos include walking the cliff-top paths among seabirds, drinking cask ale at the Marisco Tavern, and exploring the underwater world of grey seals and kelp forests. Visit May through July for seabird breeding season and wildflowers on the plateau.

Torquay is the jewel of Devon's English Riviera, a Victorian resort town where palm trees and subtropical gardens thrive in a Gulf Stream-warmed microclimate on red sandstone cliffs above a picture-perfect harbor. Must-do experiences include following the Agatha Christie heritage trail, tasting Brixham crab and Devon clotted cream scones, and exploring Kents Cavern's 40,000-year-old human habitation sites. July and August deliver the warmest, driest weather for this quintessentially English coastal destination.

The point from which every navigator on earth determines their longitude, Greenwich anchors the world's meridian with a UNESCO-listed collection of maritime monuments — from the brass Prime Meridian line at the Royal Observatory to the Cutty Sark's wind-worn hull and the baroque Painted Hall of the Old Royal Naval College. Board the Thames Clipper for a 30-minute glide to central London, or explore the weekend market's global food stalls. Summer brings the Thames to its most inviting, with long evenings golden above the river.

Sark is a car-free, feudally governed Channel Island and the world's first designated Dark Sky Island, where horse-drawn carriages traverse wildflower lanes and the Milky Way blazes overhead. Must-dos include walking the vertiginous La Coupee isthmus, tasting fresh Sark lobster, and kayaking to the Venus Pool natural tidal bath. June through August offers the warmest weather and longest days for exploration.

St. Peter Port is Guernsey's charming harbor capital, combining a thirteenth-century castle, Victor Hugo's extraordinarily decorated exile home where he wrote Les Misérables, and steep streets of shops and markets overlooking one of the Channel Islands' finest harbors. Must-dos include touring Hauteville House, exploring Castle Cornet's five museums, and tasting the traditional Guernsey bean jar. May through September offers the warmest weather for exploring this compact, walkable port town.

Portland is the wind-sculpted limestone peninsula that supplied the stone for St. Paul's Cathedral and Buckingham Palace, connected to Dorset's Jurassic Coast by the extraordinary Chesil Beach. Visit May through September via Seabourn or Ponant for quarry sculpture trails, Portland Bill's lighthouse panoramas, and access to England's first natural UNESCO World Heritage Site — a coastline of 185 million years of geological drama.

London's Tower Bridge berth places cruise passengers at the historic heart of the capital, within steps of the Tower of London, Borough Market, and Tate Modern. Must-dos include viewing the Crown Jewels, exploring Southwark's cultural quarter, and experiencing London's world-class dining scene from Michelin stars to street food. Every season offers something exceptional, from spring blossoms in the royal parks to winter's theatrical season.

St. Peter Port is Guernsey's charming harbor capital, combining a thirteenth-century castle, Victor Hugo's extraordinarily decorated exile home where he wrote Les Misérables, and steep streets of shops and markets overlooking one of the Channel Islands' finest harbors. Must-dos include touring Hauteville House, exploring Castle Cornet's five museums, and tasting the traditional Guernsey bean jar. May through September offers the warmest weather for exploring this compact, walkable port town.

Tresco is a privately managed island in the Isles of Scilly, twenty-eight miles off Cornwall, renowned for its extraordinary Abbey Garden housing twenty thousand subtropical plants and its pristine white-sand beaches. Must-dos include exploring the Abbey Garden and Valhalla shipwreck museum, swimming at Pentle Bay, and island-hopping to neighbouring Bryher and St. Martin's. Visit May through June for peak garden displays and uncrowded beaches.

St. Mary's is the gateway to the Isles of Scilly, a subtropical archipelago 28 miles off Cornwall where white-sand beaches, palm trees, and world-class seafood create an improbably exotic corner of England. Must-dos include Tresco Abbey Garden, island-hopping by boat, and dining on hand-dived scallops and local lobster. May through September offers the sunniest conditions in England.

Cobh is a historic harbour town in Cork, Ireland, famed as the Titanic's last port of call and the departure point for 2.5 million Irish emigrants. Must-dos include visiting the Cobh Heritage Centre and Titanic Experience, admiring St. Colman's Cathedral and its 49-bell carillon, and exploring the English Market in nearby Cork. May through September offers the longest days and best weather for this emotionally rich port.

Belfast, Northern Ireland’s capital, is a vibrant port city renowned for its rich shipbuilding heritage, highlighted by the Titanic Belfast museum. Must-do experiences include exploring the historic Cathedral Quarter and tasting traditional dishes like Irish stew and soda bread at St. George's Market. The best season to visit is during the spring and summer when the city comes alive with festivals and outdoor events.

Iona is a tiny, luminous island in Scotland's Inner Hebrides, revered as the birthplace of Celtic Christianity where Saint Columba founded his monastery in 563 AD. Visitors should walk the restored Benedictine abbey and Reilig Odhráin royal burial ground, then seek out the island's pristine white shell-sand beaches at Traigh Bàn. The sailing season from May through September offers the longest daylight hours and mildest weather, with June and July providing up to eighteen hours of light that bathes the island in the ethereal glow for which it has captivated artists and pilgrims for centuries.

Lunga is the largest of Scotland's uninhabited Treshnish Isles off Mull, hosting one of Britain's most accessible Atlantic puffin colonies alongside razorbills, guillemots, and grey seals in extraordinary density. The essential experience is sitting among nesting puffins on the cliff-top turf as they land within arm's reach, bills laden with sand eels. Visit June through July for peak puffin activity, arriving by Zodiac from expedition vessels or Mull tour boats.

St. Kilda is a remote UNESCO World Heritage archipelago forty miles west of Scotland's Outer Hebrides, famous for Britain's highest sea cliffs, the world's largest gannet colony, and the poignant remains of a community evacuated in 1930. Must-dos include exploring the restored village on Hirta, witnessing the extraordinary seabird colonies, and walking to the summit of Conachair. Visit between May and September, though landings depend on Atlantic weather.

Tobermory is the rainbow-painted harbor capital of Mull in Scotland's Inner Hebrides, gateway to reintroduced white-tailed eagles and the sacred island of Iona where Christianity took root in the British Isles in 563 AD. Visit June via Tauck or Windstar for the longest days, eagle-watching boat trips, and the spiritual tranquility of Iona Abbey — the cradle of Scottish Christianity.

The Shiant Isles are an uninhabited Scottish archipelago in the Minch strait, where dramatic basalt columns host over 200,000 breeding seabird pairs — puffins, razorbills, and guillemots — in one of Europe's greatest wildlife spectacles. Must-dos include Zodiac approaches to the columnar basalt cliff faces, watching the overwhelming seabird colonies, and spotting whales and dolphins in the Minch. Visit June or July for peak breeding season and longest daylight.

Loch Ewe is a sheltered Highland sea loch that served as the assembly point for World War II Arctic convoys, now home to a powerful convoy museum and the remarkable subtropical Inverewe Garden. Must-dos include visiting the Russian Arctic Convoy Museum, exploring Inverewe Garden's improbable tropical plantings at 57 degrees north, and admiring the surrounding Wester Ross landscape of ancient gneiss and Caledonian pines. Visit May through September for the garden in bloom and the mildest Highland weather.

Kirkwall, the Norse-founded capital of Scotland's Orkney Islands, is a sandstone harbour town framed by UNESCO-listed Neolithic monuments, a twelfth-century cathedral, and some of Britain's finest coastal landscapes. Visitors should not miss the five-thousand-year-old village of Skara Brae and a tasting of North Ronaldsay seaweed-fed lamb paired with Highland Park whisky. The prime cruising season runs from May through August, when Orkney enjoys up to nineteen hours of daylight and the wild coastal light is at its most luminous.

The Farne Islands are a chain of rocky outcrops off Northumberland hosting over 200,000 breeding seabirds and 2,000 grey seals, offering some of Britain's most intimate wildlife encounters. Must-dos include walking among nesting puffins and Arctic terns on Inner Farne, observing grey seals at close range, and visiting Saint Cuthbert's Chapel. Visit mid-May through mid-July for peak seabird breeding season.

Holyhead is Wales's maritime gateway on Holy Island, offering dramatic cliff walks to South Stack Lighthouse with its puffin colonies, plus access to Anglesey's Neolithic burial chambers and Edward I's Beaumaris Castle. Must-do experiences include tasting Halen Môn sea salt and lobster at coastal restaurants, exploring Bryn Celli Ddu's ancient passage tomb, and walking the Victorian breakwater. May through September is best, with summer bringing puffins and the longest days.

Edinburgh, Scotland’s volcanic capital, layers medieval drama along the Royal Mile with Georgian elegance in the New Town, crowned by a castle on an extinct volcano and home to the world’s largest arts festival each August. Must-dos include exploring Edinburgh Castle and Holyroodhouse, touring the Royal Yacht Britannia at Leith, and tasting whisky at the Scotch Malt Whisky Society. Visit August for festival season, or spring and autumn for atmospheric light and fewer crowds.