Oban

Castle Stalker is a small, perfectly proportioned four-storey tower house standing on its own tidal islet in Loch Laich, off Loch Linnhe near Appin, and it's one of the most photographed castles in Scotland precisely because it looks like the archetypal fairy-tale keep — instantly recognisable from countless calendars and, briefly, the closing scene of Monty Python and the Holy Grail. Built by the Stewarts of Appin in the 15th-16th century, it passed through Campbell and Stewart hands over the centuries and fell into disrepair before a 20th-century restoration returned it to a habitable state. Most visitors experience it purely as a view from the roadside layby on the A828 or from a boat trip on the loch, since interior access is limited and by prior arrangement only. That's not really a disappointment — the point of Castle Stalker is the setting, with the Morvern and Argyll hills behind it and the tide dictating whether it sits on an island or a low grassy mound, and the roadside view delivers that in full.

Duart Castle stands on a rocky promontory at the entrance to the Sound of Mull, commanding sweeping views over the water toward Oban and the Argyll coast, and it has been the ancestral seat of Clan MacLean for over 700 years. Like several Highland castles, it fell into ruin after the clan's estates were forfeited following the Jacobite risings, and it stayed a roofless shell for nearly two centuries until a MacLean chief bought it back and restored it in the early 20th century — a restoration story that's almost as compelling as the medieval history. Inside, the rooms are furnished to evoke different periods of the castle's life, including dungeons, a great hall, and displays on clan history and the family's connections abroad, with the tower's viewpoint giving one of the best panoramas on Mull. It's an easy, worthwhile stop for anyone taking the ferry across to Mull, whether as a day trip or en route further into the island.

Dunollie Castle sits on a rocky headland just north of Oban's harbour, a ruined tower that has guarded the entrance to Oban Bay since medieval times and remains the ancestral seat of Clan MacDougall, one of Scotland's oldest clans, tracing descent from the medieval Lords of Lorn. Unlike some of the region's more polished restored castles, Dunollie is a genuine ruin — atmospheric rather than pristine — with the adjacent 18th-century Dunollie House now serving as a small museum on the clan's history and the site's long occupation stretching back to the early medieval period. It's an easy, short walk from central Oban along the coastal path, making it a natural add-on to a stroll around the harbour, and the headland gives good views back over the bay and out toward the islands. It won't take long to see, but it's a worthwhile bit of history and scenery within easy reach of town without needing a car.

Glen Coe is arguably the most dramatic and best-known glen in the Scottish Highlands, a steep-sided valley carved by ancient volcanic activity and glaciation, flanked by the jagged peaks of the Three Sisters and Aonach Eagach ridge. Beyond the scenery, it's infamous for the 1692 Massacre of Glencoe, when government soldiers billeted with the MacDonald clan turned on their hosts in a brutal breach of Highland hospitality — a history that still colours how the glen is talked about locally and is covered in depth at the excellent Glencoe visitor centre. The glen offers everything from short roadside walks and waterfall stops to serious mountain routes up peaks like Buachaille Etive Mòr and the Aonach Eagach, one of Scotland's most challenging ridge walks. Even without leaving the car, the drive through on the A82 is one of the most spectacular road journeys in Britain, and it's an easy, essential stop on the route between Glasgow/Fort William and the wider Highlands.

Iona Abbey sits on the tiny island of Iona off the southwest tip of Mull, and it's one of the most historically significant religious sites in Scotland — founded by St Columba in 563 AD as a monastic base from which Christianity spread across Scotland and much of northern Britain. The restored abbey church and surrounding monastic buildings, along with the adjacent burial ground reputed to hold early Scottish kings, give real weight to the island's reputation as a place of deep spiritual significance that draws pilgrims and casual visitors alike. Iona itself is small and largely car-free, with white sand beaches, turquoise water, and a slow, contemplative pace that feels a world away from the mainland, even though it's reached via two short ferry crossings. The Iona Community, an ecumenical Christian group, still uses the abbey today, and visitors can often sense that this remains a living, functioning religious site rather than a purely historical monument.

Kilmartin Glen, in Argyll south of Oban, holds one of the densest concentrations of prehistoric monuments anywhere in Scotland — more than 800 sites within a six-mile stretch, including standing stones, burial cairns, cup-and-ring marked rocks, and the impressive Iron Age hillfort of Dunadd, once a stronghold of the early Scottish kingdom of Dál Riata. It's less immediately dramatic than Skye's landscapes or Glen Coe's mountains, but for anyone interested in Scotland's deep prehistoric and early medieval past, it's one of the richest places in the country to actually walk among the evidence. The excellent Kilmartin Museum in the village anchors a visit, with exhibits explaining the archaeology and context of the glen's monuments, and several of the key sites — the Nether Largie standing stones and cairns in particular — are an easy walk from the museum itself. Dunadd hillfort, a short drive away, rewards the climb with views over the glen and a carved footprint stone linked to ancient inauguration rituals.

McCaig's Tower is the strange, unfinished-looking granite colosseum that crowns the hill above Oban, built between 1897 and 1902 by local banker John Stuart McCaig, who intended it as a lasting memorial to his family and a source of employment for local stonemasons. Modelled loosely on Rome's Colosseum, the circular structure was never completed to McCaig's full plan of towers and museum galleries, and its roofless, empty arches now stand simply as a striking folly rather than a working building. McCaig died in 1902 with the project barely begun, and it has remained essentially untouched since, giving Oban one of Scotland's most distinctive skyline landmarks. The real draw is less the tower itself than the walk up and the view once you're there: from the terraced grounds you get a sweeping panorama over Oban Bay, the harbour, the ferries threading out toward Mull, Kerrera and the Hebrides beyond. It's a short, free, unticketed climb from the town centre, popular at sunset, and makes an easy way to get your bearings on Oban's geography before heading out to the islands.

Oban Distillery sits right in the middle of Oban's harbourfront, wedged so tightly against the surrounding buildings and cliff that it's one of the few Scotch distilleries still operating within a working town centre rather than a rural site. Founded in 1794, before the town itself grew up around it, it's one of the oldest licensed distilleries in Scotland and has changed remarkably little in footprint since, still using just two stills to produce a relatively small annual output. Its whisky is a well-known West Highland single malt, prized for a character that sits between the smoky, maritime style of the islands and the lighter, sweeter profile of Highland whiskies. Tours here are compact by necessity, winding through the mash house, tun room and tiny stillhouse in a way that feels intimate rather than industrial, with guides explaining the distillery's cramped, hemmed-in history alongside the whisky-making process itself. Most tours end with a dram (or tasting flight) of Oban's core range, and the visitor centre and shop stock exclusive bottlings not sold elsewhere. It's an easy, worthwhile stop for anyone wandering Oban's harbour, whether or not they're deeply into whisky.

St Columba's Cathedral, Oban: St Columba's Cathedral is the Catholic cathedral overlooking Oban Bay, a granite and grey stone building begun in 1932 and consecrated in 1953, designed by Sir Giles Gilbert Scott - the architect behind Liverpool's Anglican cathedral and London's iconic red telephone box. It was built to serve the seat of the Diocese of Argyll and the Isles and named for St Columba, the Irish missionary monk who brought Christianity to Scotland via Iona in the 6th century, making the dedication especially fitting given Oban's role as the main gateway to Iona and the Hebrides. Compared to Oban's other landmark, the flamboyant McCaig's Tower up the hill, the cathedral is a quieter, more solemn presence, its plain granite exterior giving way to a simple, light-filled interior. It's a working parish church rather than a tourist attraction, but visitors are generally welcome to step inside outside of services, and its waterfront position makes it an easy, low-key stop while exploring the harbourfront.

Staffa is a small, uninhabited volcanic island off the coast of Mull, famous for Fingal's Cave - a vast sea cave formed from perfectly hexagonal basalt columns, the same geology as Northern Ireland's Giant's Causeway, created by cooling lava around 60 million years ago. The cave's eerie acoustics and cathedral-like columns inspired Felix Mendelssohn to write his 'Hebrides Overture' after visiting in 1829, and the island has drawn artists, poets and scientists (including Joseph Banks and Queen Victoria) for centuries since. It's reachable only by boat, typically as a day trip from Oban, Mull or Iona, and landing is weather-dependent since there's no sheltered harbour. On a calm day, boats let passengers land and walk along a stone causeway into the mouth of Fingal's Cave itself, a genuinely dramatic experience with waves echoing through the columns. The island is also a significant seabird colony, and puffins nest on the clifftops in a colony grazing area between roughly May and July, making a summer trip a chance to combine geology with wildlife. Many operators combine a Staffa landing with a stop on Iona in the same excursion.