Duration: Approximately 3.5 to 4 hours of narrated hiking Distance: 10.5 km (circuit from Kandersteg via gondola) Elevation Gain: 570 m ascent / 570 m descent (circuit) Starting Elevation: 1,682 m (Oeschinen gondola upper station) Ending Elevation: 1,682 m (return to upper station) Difficulty: T2 (moderate mountain hiking) Best Season: June to October GPS Start: 46.4978N, 7.7280E (Gondola upper station) GPS Oeschinensee: 46.5022N, 7.7333E
Introduction
Welcome to one of Switzerland's most stunning natural settings: the Oeschinensee, a turquoise alpine lake cradled in a dramatic cirque of towering limestone peaks. This lake, nestled above the village of Kandersteg at 1,578 metres, was designated a UNESCO World Heritage Site in 2007 as part of the Swiss Alps Jungfrau-Aletsch region, recognising its outstanding natural beauty and geological importance.
You are about to embark on a circuit hike that encircles this magnificent lake and explores the surrounding terrain. The route takes you from the gondola upper station down to the lakeshore, along the western bank, up to the Heuberg viewpoint, and back via alpine pastures, a journey of roughly 10.5 kilometres with 570 metres of cumulative elevation gain.
Oeschinensee is fed by waterfalls cascading from the glaciers above and has no visible outlet. The water seeps through the porous limestone bedrock and re-emerges as springs in the valley below Kandersteg, a hydrogeological phenomenon that fascinated early geologists.
Before we begin, some practical notes. The trail around the lake includes some narrow, rocky sections on the far side that can be slippery when wet. Sections of the western shore trail are exposed, with steep drop-offs to the lake below, and are secured with cables. This is not suitable for those with a strong fear of heights. Wear sturdy hiking boots with good grip. The lakeshore has several spots for swimming in summer, so consider bringing a swimsuit, though be warned: the water temperature rarely exceeds 14 degrees Celsius.
Follow the signs from the gondola station toward "Oeschinensee."
Waypoint 1: Gondola Upper Station (1,682 m)
GPS: 46.4978N, 7.7280E
From the gondola upper station, you have your first view of the mountain amphitheatre that surrounds Oeschinensee. The peaks you see form a near-continuous wall of rock rising over 1,500 metres above the lake.
Starting from the left, the Blueemlisalp massif dominates the southern horizon. At 3,661 metres, the Blueemlisalphorn is the highest peak in view, and its north face still carries a significant glacier. The name Blueemlisalp translates roughly to "flower meadow alp" and comes from a legend that the mountain was once a rich pasture until a wasteful dairymaid was punished by God, who covered the meadows in eternal ice. The legend is a common Alpine motif: a morality tale warning against the sin of wastefulness, wrapped in an explanation for the glaciers.
To the right of the Blueemlisalp, you can see the Oeschinenhorn at 3,486 metres and the Fruendenhorn at 3,369 metres. The rock is predominantly Cretaceous limestone, laid down roughly 100 million years ago and subsequently uplifted and sculpted by glacial erosion.
The path to the lake descends through a pleasant forest of spruce and larch. It is wide, well-graded, and also serves as the route for the famous Oeschinen toboggan run in winter.
Next waypoint: 900 metres, approximately 15 minutes.
Waypoint 2: First Lake Viewpoint (1,620 m)
GPS: 46.4995N, 7.7305E
As you emerge from the forest, Oeschinensee suddenly appears below you, and the sight is breathtaking. The lake stretches roughly 1.6 kilometres long and 1 kilometre wide, its surface a luminous turquoise that shifts between pale blue and deep green depending on the light, the season, and the amount of glacial sediment in the water.
The colour, as with many alpine lakes, comes from rock flour, microscopic particles of rock ground by glacial action and suspended in the water. These particles scatter light in the blue-green portion of the spectrum, creating colours of almost unreal intensity. In spring, when snowmelt carries fresh sediment into the lake, the colour is at its most vivid. By late autumn, as the sediment settles, the water becomes clearer and darker.
The waterfalls you can see cascading down the far walls of the cirque are the lake's primary water sources. The most dramatic fall, on the south side, drops roughly 200 metres in a series of cascades. The total catchment area that feeds the lake covers about 25 square kilometres, much of it glaciated.
Here is one of the lake's great geological puzzles: Oeschinensee has no visible surface outlet. The water level stays remarkably stable, which means the water must be draining underground. Geologists have confirmed that the lake water percolates through fractured limestone bedrock and emerges as the Kander Springs near Kandersteg, about 350 metres below and two kilometres away. Dye-tracing experiments have shown that the underground journey takes several days.
Next waypoint: 600 metres, approximately 10 minutes.
Waypoint 3: Lakeshore East (1,578 m)
GPS: 46.5010N, 7.7325E
You have reached the lakeshore. The flat area here, with its gravel beach and grassy picnic spots, is the most accessible part of the lake and the main gathering point for visitors.
You will notice the small rowing boats moored along the shore. These can be rented and offer a unique way to experience the lake, drifting beneath the towering walls with only the sound of waterfalls and the occasional splash of an oar. Rowing to the far end of the lake provides access to viewpoints that cannot be reached on foot.
The water here is remarkably clear near the shore, and you can often see to a depth of several metres. The lake reaches a maximum depth of about 56 metres, making it one of the deeper mountain lakes in the region. Water temperatures hover around 8 to 12 degrees Celsius in summer at the surface, cold enough to make swimming an exhilarating experience.
Despite the cold, the lake supports fish populations. Arctic char, Salvelinus alpinus, were introduced to the lake and thrive in the cold, oxygen-rich water. These fish are relicts from the Ice Age, adapted to near-freezing temperatures. Fishing is permitted with the appropriate cantonal licence.
Take the path that follows the eastern shore southward. The trail is flat and easy along this section, passing through meadows and sparse forest.
Next waypoint: 800 metres, approximately 15 minutes.
Waypoint 4: South Shore and Waterfalls (1,580 m)
GPS: 46.5045N, 7.7360E
As you approach the southern end of the lake, the waterfalls become louder and more impressive. Several streams cascade down the rock walls, fed by glacial melt from the Blueemlisalp and Oeschinenhorn glaciers above.
The largest of these falls, the Oeschibach, drops in multiple stages down a cliff face stained with dark mineral deposits. On sunny days, the spray creates rainbows that arc across the rock. The volume of water varies dramatically with the seasons and even with the time of day, peaking in warm afternoons when solar radiation accelerates glacier melt.
Look at the base of the cliffs where the waterfalls strike the rocks. You can see the immense power of water erosion at work. Plunge pools have been carved into solid limestone, and boulders smoothed and polished by centuries of cascading water lie scattered about. This erosive power, multiplied over millions of years, is what created the cirque that holds the lake.
The vegetation near the waterfalls is lush and distinctive. The constant spray creates a microclimate of high humidity, perfect for mosses, liverworts, and ferns. Look for the delicate maidenhair spleenwort, Asplenium trichomanes, growing in crevices in the wet rock. You may also spot the yellow mountain saxifrage, Saxifraga aizoides, which thrives on wet limestone.
Next waypoint: 700 metres, approximately 15 minutes.
Waypoint 5: Western Shore Trail (1,590 m)
GPS: 46.5060N, 7.7330E
The trail now follows the western shore of the lake, and this is where the hike becomes more adventurous. The path is cut into the rocky slope above the water, and in several places it narrows to a metre or less with steep drop-offs to the lake below. Metal cables are bolted into the rock for handholds.
Take your time through this section. The rock can be slippery, especially if wet from waterfall spray or rain. Place your feet carefully and maintain a grip on the cable. The exposure is modest by Swiss alpine standards, but if you are uncomfortable with heights, be aware that the next 500 metres require some care.
The effort is rewarded with stunning views. From this elevated perspective on the western shore, you look across the full length of the lake to the peaks beyond. The reflection of the mountains in the still, turquoise water on a calm morning is one of the classic images of the Bernese Oberland.
The limestone walls beside you are rich in fossils. Keep an eye out for the distinctive spiral shells of ammonites and the round shapes of crinoid stems, also known as sea lily fossils. These marine creatures lived in the warm, shallow Tethys Sea that covered this area roughly 100 million years ago. Their fossilised remains now sit at 1,600 metres above sea level, over 600 kilometres from the nearest coast, a striking reminder of how dramatically the Earth's geography has changed.
Next waypoint: 600 metres, approximately 15 minutes.
Waypoint 6: The Allmenalp Junction (1,650 m)
GPS: 46.5048N, 7.7275E
You have emerged from the narrow section of the western shore trail and reached a junction. The path to the right descends back toward the gondola station. We continue straight ahead and uphill, following signs to "Heuberg" and "Ober Bergli."
This junction sits on the edge of the Allmenalp, a traditional alpine pasture that has been grazed for centuries. The word "Allmen" derives from "Allmende," the common land that was shared among the farming community. In the medieval Swiss system, alpine pastures were communally owned and managed, with each farmer allocated grazing rights based on the number of cattle they could sustain through winter. This system of commons, far from leading to overexploitation, actually resulted in careful stewardship, as the community collectively enforced sustainable grazing practices.
The Kandersteg region is in the canton of Bern, and the local dialect, Bernese German, is one of the most distinctive in Switzerland. Even other Swiss German speakers sometimes struggle with the broad vowels and unique vocabulary of Berneroberlaendisch. You may hear local hikers greeting each other with "Grueessech," the Bernese form of "hello."
Next waypoint: 800 metres, approximately 20 minutes.
Waypoint 7: Heuberg Viewpoint (1,830 m)
GPS: 46.5020N, 7.7235E
The climb to the Heuberg viewpoint is the most strenuous part of the circuit, gaining about 250 metres over a kilometre of trail. But the reward is one of the finest views in the Bernese Oberland.
From here, at 1,830 metres, you look directly down onto Oeschinensee. The lake appears as a perfect turquoise jewel set in a grey stone ring. The full cirque is visible, from the glaciated peaks of the Blueemlisalp to the forested slopes below the gondola station. On clear days, the view extends north to the Niesen, the perfect pyramid that rises above Spiez on Lake Thun.
This is the perspective that has made Oeschinensee one of the most photographed locations in Switzerland. The 10-franc Swiss postage stamp issued in 2018 featured this very view, and it regularly appears on tourism campaigns for the Bernese Oberland.
Looking south, you can trace the route of the old Loetschberg pack trail, used for centuries to cross the Alps between the cantons of Bern and Valais. Before the construction of the Loetschberg rail tunnel in 1913, this was one of the main trans-Alpine routes, and mule trains carrying goods would pass through Kandersteg on their way to the Gemmi Pass or the Loetschenpass. The opening of the rail tunnel transformed Kandersteg from a transit point into a resort, and the village has been a popular base for hikers and skiers ever since.
Rest here and enjoy the panorama. There are several flat rocks that make comfortable seats.
Next waypoint: 700 metres, approximately 15 minutes.
Waypoint 8: Ober Bergli Area (1,780 m)
GPS: 46.5000N, 7.7210E
The trail from Heuberg descends gently through alpine meadows toward the Ober Bergli area, a cluster of traditional alpine huts and barns.
These structures are typical of the Bernese Oberland's alpine architecture. Built from local larch and spruce wood, darkened by centuries of sun and weather to a rich chocolate brown, they sit on stone foundations and have low, heavy roofs weighted with stones to resist the fierce winter winds. The design has barely changed in centuries because it works. The thick wooden walls provide insulation, the overhanging roofs shed snow, and the stone foundations protect against moisture and vermin.
Some of these huts serve as summer restaurants, offering simple but hearty mountain fare: roesti with melted cheese, dried meat from Graubuenden, and the local Alpkaese, cheese made from the milk of cows grazing on these very meadows. If one is open during your visit, a stop for refreshment is highly recommended.
The meadows around Ober Bergli are particularly rich in wildflowers. In June and July, look for the large, showy blooms of the martagon lily, Lilium martagon, with its distinctive pink-purple turban-shaped flowers. You may also spot gentians, campanulas, and the delicate white stars of the edelweiss.
Next waypoint: 800 metres, approximately 15 minutes.
Waypoint 9: Forest Trail Back (1,700 m)
GPS: 46.4988N, 7.7248E
The circuit now leads you through a beautiful subalpine forest as you descend back toward the gondola station. This is a mixed forest of Norway spruce, silver fir, and European larch, with an understory of bilberry, wild raspberry, and various mosses.
The forest here plays a crucial role beyond its beauty. It serves as a Schutzwald, or protection forest. In steep mountain terrain, forests are the most effective natural defence against avalanches, rockfall, and landslides. The trees anchor the soil with their roots, break the force of falling rocks, and prevent snow from accumulating into dangerous slab avalanches. Swiss law designates many mountain forests as protection forests and prohibits their clearing, a policy that dates back to the Federal Forest Law of 1876, one of the earliest environmental protection laws in Europe.
The management of protection forests is a sophisticated science in Switzerland. Foresters carefully thin and replant these forests to maintain an ideal structure: diverse age classes, multiple tree species, and sufficient canopy density to prevent snow accumulation while allowing enough light for regeneration. A well-managed protection forest can reduce avalanche risk by over ninety percent compared to an open slope.
Listen as you walk. The forest is alive with sound. The distinctive three-note call of the coal tit, the tapping of woodpeckers, and the chattering of red squirrels form a constant backdrop. In the undergrowth, you might see or hear the rustle of a wren, one of Europe's smallest but loudest birds.
Next waypoint: 600 metres, approximately 10 minutes.
Waypoint 10: Return to Gondola Station (1,682 m)
GPS: 46.4978N, 7.7280E
You have completed the Oeschinensee circuit. The gondola station is just ahead, and you have come full circle.
Closing
Well done. You have hiked approximately 10.5 kilometres around one of Switzerland's most beautiful alpine lakes, gaining and losing 570 metres of elevation over the course of roughly three and a half to four hours.
Oeschinensee is a place that rewards every visit. The light changes through the day, from the soft pastels of morning to the golden glow of afternoon, and the seasons transform the scene entirely, from the lush greens of summer to the fiery larches of autumn and the frozen stillness of winter, when the lake freezes solid and locals play curling on the ice.
For your return to Kandersteg, the gondola runs approximately every fifteen minutes during the summer season. The ride down takes about eight minutes and offers final views of the cirque from above.
If you have time in Kandersteg, consider visiting the village's charming old quarter, where traditional chalets line the main street. The Blausee, a small but impossibly blue lake about six kilometres from the village, is also worth a visit and can be reached by bus or a pleasant valley walk.
Thank you for hiking with ch.tours. We hope Oeschinensee has captured your heart as it has captured the hearts of visitors for centuries. Safe travels, and enjoy the rest of your time in the Bernese Oberland.