Formed after the last ice age, Lake Thun was once connected to Lake Brienz as “Wendelsee.” By the 10th century, they separated into two distinct lakes
Located entirely within the Canton of Bern, the lake spans approximately 48.3?km², reaches depths up to 217?m, and holds around 6.5?km³ of water
Description & Surroundings
Framed by alpine peaks (Eiger, Mönch, Jungfrau), verdant meadows and forests, the lake offers sweeping panoramic vistas
Key villages and towns include Thun, Spiez, Oberhofen, and Hilterfingen—each with rustic charm and lakeside ambience
Typical Food & Wine
The region cultivates vineyards producing AOC wines, including Müller-Thurgau, Chardonnay, Garanoir, and Pinot Noir around Spiez and Faulensee
In Thun, culinary tours like Culinary Thun offer multi-course meals in historic venues, paired with stories about the city and its heritage
Festivals & Cultural Events
Every summer, Thunerseespiele stages open-air musical productions on a floating stage over Lake Thun, with the Alps glowing in the backdrop
In September, the Fulehung festival sees the locals reenact medieval traditions, with parades, sweets for kids, and historical flair
Thun also hosts the Ironman Switzerland triathlon and a kayaking freestyle event in the Aare river sluice each summer
Nature & Outdoor Activities
Enjoy hiking the Panorama-Wanderweg Thunersee, a scenic 56?km route crossing hanging bridges and offering breathtaking views
The St.?Beatus Caves provide an underground world of waterfalls, stalactites, and mythological lore right beside the lake
The Thunersee–Beatenberg funicular (est. 1889) climbs to Beatenberg and connects to the Niederhorn cable car for alpine panoramas
Near the eastern shore lies Weissenau natural reserve, an ecologically significant wetland protecting rare flora and birds, with accessible paths and observation towers
Recreational & Cultural Activities
Boat trips aboard the historic paddle steamer Blümlisalp or themed cruises (e.g. “Fajita Boat” or OaSee lounge ship) take you between lakeside castles and villages
Castles to explore along the lake: Thun Castle, Spiez Castle, Oberhofen Castle, and Schadau Castle, each offering museum exhibits and scenic views
In Thun, you’ll find boutique shopping streets like Bälliz and Obere Hauptgasse with specialty stores, cafés, and cultural tours in the medieval old town
Shopping Highlights
Thun’s Old Town is full of stylish boutiques perfect for souvenirs, local crafts, and Swiss specialty goods—especially along Bälliz and high-arched arcades
Lakeside towns such as Spiez and Oberhofen offer artisan shops, wine from local vineyards, and relaxed lakeshore retail experiences.
Tips for Visiting
Seasonal highlights: Summer brings musical performances and lake festivals, while autumn features foliage walks and harvest events.
Transport & passes: Purchase the Bernese Oberland Pass or PanoramaCard Thunersee for free access to boats, buses, and most cableways around the region
Best towns to stay: Thun for history and culture; Spiez for wine and relaxation; Oberhofen or Faulensee for tranquil lakeside vibes.