Thun travel guide

Why visit Thun

Thun is the kind of Swiss town that surprises people who have only come for the mountains. They stop here briefly — to catch a boat, change trains, or buy supplies — and find themselves walking along the Aare river, staring up at a castle that belongs in a fairy tale, and wondering why no one told them the town itself was worth an afternoon. Then the afternoon becomes an evening, and they book another night.

Situated at the northern end of Lake Thun, where the turquoise waters of the lake narrow into the Aare river and flow through the old town, Thun has been a strategic and commercial centre since the twelfth century. The castle on the hill — Schloss Thun — was built by the Dukes of Zähringen in the 1100s and still dominates the town from its elevated position above the covered shopping arcades below. The old town itself is built on an island in the Aare, its terraced main street flanked by covered walkways at first-floor level — a medieval arrangement so unusual that it has been described as one of the most distinctive shopping streets in Switzerland.

Thun is also the gateway to the Bernese Oberland. From here, trains head south toward Interlaken, Grindelwald, and the Jungfrau region; lake boats cross to Spiez and Interlaken; and the mountain panorama visible on clear days from almost anywhere in town — the Niesen pyramid, the Stockhorn range, and the distant whites of the high Alps — serves as a constant reminder of what lies to the south.

Getting to Thun

By train

Thun is on a major rail line between Bern and Interlaken. From Bern, trains run approximately every 30 minutes and take 20 minutes. From Interlaken West, the journey takes around 30 minutes. From Zurich, direct trains take around 1 hour 10 minutes; otherwise, change at Bern. From Geneva, the journey is approximately 2 hours with a change at Bern. All these routes are covered by the Swiss Travel Pass.

By car

Thun is accessible via the A6 motorway from Bern (approximately 25 minutes). Parking is available in multi-storey car parks in the town centre, though the old town itself is largely pedestrianised and easier to explore on foot.

By boat

During the summer season, lake boats operate between Thun, Spiez, and Interlaken. The journey from Thun to Interlaken West by boat takes around 2 hours 15 minutes — longer than the train but dramatically more scenic, passing vineyards, castle ruins, and the mountain panorama reflected in the lake. Swiss Travel Pass holders travel free on SGS lake boats.

Top things to do in Thun

Schloss Thun

The castle above the old town is the defining image of Thun and one of the best-preserved medieval castles in Switzerland. Built in the late twelfth century, its square keep with four corner towers is visible from most of the town and from much of the lake. Inside, the castle now houses a cantonal history museum spread across five floors, with collections covering weapons, household objects, ceramics, and artefacts from the Roman and medieval periods.

The views from the castle tower — accessible by wooden staircase — are excellent: the old town island below, the Aare winding through the centre, the lake stretching south, and the mountain panorama of the Bernese Alps. Allow two to three hours for a thorough visit including the tower. The castle is open year-round, though with reduced hours in winter.

The covered shopping street (Obere Hauptgasse)

The main street of Thun’s old town is built on a raised causeway, with the ground-floor shops opening onto street level and an upper walkway at first-floor level running the length of the street. Shoppers walk at two levels simultaneously — a medieval concept that is both practical (shelter from rain) and architecturally unique. The street is lined with independent shops, bakeries, watchmakers, and clothing boutiques, with the castle looming at the top and the Aare bridges visible at the bottom.

Lake Thun

Lake Thun is one of the largest and most beautiful lakes in the Bernese Oberland, best explored with a Lake Thun boat day pass for unlimited hop-on, hop-off cruising. Its waters are an improbable turquoise — the colour comes from glacial meltwater carrying fine mineral particles in suspension — and the combination of the lake surface, the surrounding mountains, and the vineyards on the northern shore creates a landscape that has attracted painters since the Romantic era.

From Thun, the lake is accessible by boat, by bicycle along the shore path, or by SUP and kayak rental available at the lakeside. The swimming area at Bälliz (near the town centre) is popular in summer. The view down the lake toward the mountains — on a clear day you can see snow-covered peaks beyond Spiez and Interlaken — is one of the finest in the Bernese Oberland.

Wocher Panorama

The Wocher Panorama is an unusual historical artefact: a circular panoramic painting of Thun and its surrounding landscape as it appeared in the early nineteenth century, created by Marquard Wocher between 1809 and 1814. It is one of the oldest surviving 360-degree panorama paintings in the world and offers a fascinating comparison with the present-day town — many of the streets and buildings are recognisable, while others have vanished entirely. The panorama is housed in a purpose-built rotunda near the Aare river.

Schadau Park and the Thunersee Museum

The lakeside Schadau Park, a few minutes’ walk from the town centre, is one of the most pleasant public green spaces in the region. The neo-Gothic Schadau castle at its centre houses a restaurant with outdoor terrace overlooking the lake. The park itself — with old trees, manicured lawns, and a small boathouse — is ideal for a picnic or an evening walk. The Thunersee Museum nearby covers the natural and cultural history of the lake and region.

Cycling around Lake Thun

Lake Thun is circumnavigated by a well-maintained cycling route that covers approximately 55 kilometres and passes through vineyards, small villages, and the lakeside town of Spiez. The route is generally flat and suitable for all fitness levels. Bikes can be rented from the train station or from several outlets near the lake. Portions of the route are particularly scenic between Thun and Hilterfingen, where the vineyards slope down to the water’s edge.

Where to stay in Thun

Thun has a solid range of accommodation options across all price points. The Hotel Krone, in the old town near the bridge, is a well-regarded mid-range option in a historic building. The Seepark Hotel on the lakefront is a larger four-star property with good facilities and lake views. Budget travellers will find several guesthouses in the residential streets around the railway station.

For those using Thun as a base for the wider Bernese Oberland, the town’s excellent train connections to Interlaken and Bern make it a genuinely convenient and more affordable alternative to staying in the mountain villages directly.

Where to eat and drink

Thun has a livelier restaurant scene than many comparable Swiss towns of its size. The Freienhof is a historic restaurant in an eighteenth-century building near the old town bridge, serving Swiss classics with good seasonal produce. The Zum Dürst guesthouse serves hearty Swiss food in a traditional setting. Along the Aare river, several cafés and restaurants have outdoor terraces that fill up on warm evenings.

The town market, held on Saturdays near the Rathausplatz, is worth visiting for local bread, cheese, seasonal vegetables, and flowers. Bern cheeses and Bernese Oberland dairy products are well represented.

Day trips from Thun

Spiez

Spiez is just 15 minutes south by train or a pleasant boat trip across the lake. Its famous castle sits directly on the water’s edge surrounded by vineyards — one of the most photographed spots in the Bernese Oberland.

Interlaken

Interlaken, the adventure capital of the region and gateway to the Jungfrau mountains, is 30 minutes by train from Thun. A day trip combining the old town of Thun in the morning with an adventure activity or mountain railway journey from Interlaken in the afternoon makes for an excellent full day.

Bern

The Swiss capital Bern is just 20 minutes by train — close enough for a half-day excursion to the old town, the bear park, and the arcaded streets that earned Bern its UNESCO World Heritage designation.

Stockhorn

The Stockhorn (2,190 metres) is the closest mountain to Thun with a cable car and offers a panorama that, on clear days, extends from the Bernese Alps to the Black Forest and the Vosges in the west. The cable car from Erlenbach im Simmental takes about 20 minutes. A lake sits at the summit, the restaurant serves good lunch, and the walking trails are accessible for those of all fitness levels.

Practical tips for visiting Thun

Thun is an easy place to navigate. The old town is compact, the castle is visible from everywhere, and the lake is a constant orientation point. The town is busiest in July and August, when the lakeside areas fill with Swiss holidaymakers.

The Swiss Travel Pass covers all trains to Thun and all lake boats on Lake Thun — making it straightforward to combine a visit to Thun with Spiez, Interlaken, and the mountain railways beyond.

If you are building a 7-day Switzerland itinerary, Thun works well as a one-night base while travelling between Bern and the Bernese Oberland mountains — close enough to the high Alps to feel their presence, but with a genuine old-town character that the larger resort towns sometimes lack.

The town is pleasant at any time of year. Summer brings the lake and the mountain backdrop in full colour; autumn turns the vineyards along the shore; winter quietens the streets and the mountains take on the clean, sharp look they have only in cold air. Thun is not a destination that announces itself loudly. It reveals itself gradually, over a morning’s walk, a castle visit, and a long lunch in the old town — and by the afternoon, most visitors are already planning to return.