Aletsch Glacier: the Alps' longest glacier

Visiting the Aletsch Glacier

The Aletsch Glacier is the longest glacier in the Alps — 23 kilometres of ice flowing from the Jungfrau massif southwestward into the Valais canton. It holds roughly 11 billion cubic metres of fresh water. From the air it looks like a slow river frozen mid-flow, its surface cracked by crevasses and marked by medial moraines — dark stripes of rock debris carried along the glacier’s length. From the ground, standing at its edge, it is simply enormous.

The glacier became part of the UNESCO Swiss Alps Jungfrau-Aletsch World Heritage Site in 2001. It is best viewed from two high points above the Aletsch Arena: Bettmerhorn (2,872m) and Eggishorn (2,869m), both accessed from the car-free villages of Bettmeralp and Fiescheralp respectively. The viewpoint from either summit — looking northeast toward Konkordiaplatz, the vast confluence of four glaciers — is one of the defining alpine panoramas of Europe.

One thing worth saying plainly: the Aletsch is retreating. It has lost approximately 3 kilometres in length since the 1870s and continues to lose around 50 metres per year. Scientists project that by the end of this century, it may be less than half its current length. Visiting now is not morbid — it is witnessing something extraordinary while it still exists at scale.

What makes the Aletsch Glacier special

Scale is the defining characteristic. You cannot understand the Aletsch from photographs — even excellent ones fail to convey the depth of the ice (up to 900 metres at Konkordiaplatz) or the sheer width of the glacier at its broadest points. Standing at Bettmerhorn looking northeast, the glacier fills the valley floor from wall to wall for the entire length of your view. In summer, the white-and-blue surface contrasts with the dark rock ridges on either side; in winter, fresh snowfall blurs the boundary between glacier and mountain.

The Konkordiaplatz is the heart of the system — a roughly rectangular basin approximately 4 km² where the Grosser Aletschfirn, Jungfraufirn, Ewigschneefeld, and Grüneggfirn all merge into the single Aletsch flow. You are looking at the combined accumulation of snowfall from a catchment area that includes the south faces of the Jungfrau (4,158m), Mönch (4,107m), and Aletschhorn (4,193m). The Jungfraujoch — the high mountain railway station visited by over a million tourists per year — sits on the ridge above Konkordiaplatz’s eastern rim.

The Aletsch Arena (the collective name for the car-free villages of Bettmeralp, Riederalp, and Fiescheralp, plus the connecting terrain) is genuinely traffic-free. Cars park at valley stations; everything in the Arena moves on foot, ski, or snowshoe. This gives the area a quality rare at major Swiss mountain destinations: genuine quiet.

How to get there

By train and cable car

The cleanest approach is via Brig, the main rail hub of the Valais. From Brig, local transport splits depending on which section of the Aletsch Arena you target:

• Bettmeralp route (recommended): Train from Brig to Mörel (12 minutes on regional train), then the Bettmeralp cable car from Betten Talstation. The cable car takes about 8 minutes and deposits you at Bettmeralp village at 1,950m. From here, take the gondola to Bettmerhorn (2,872m) for the main glacier viewpoint.
• Riederalp route: Train from Brig to Mörel, then cable car from Ried-Mörel to Riederalp (2,000m). The Riederalp gondola then climbs to Moosfluh (2,333m), which gives a lower but closer view of the glacier edge. There is a nature trail here operated by the Pro Natura centre.
• Fiescheralp/Eggishorn route: Train from Brig to Fiesch (25 minutes), then the Fiescheralp gondola, then the Eggishorn cable car. Eggishorn (2,869m) gives the famous postcard view of Konkordiaplatz — many people consider this the better viewpoint for photos.

By train from Zurich, count on 2.5 hours to Brig (via Bern or via Luzern and the Lötschberg tunnel), then another 45 minutes to the summit viewpoint. From Geneva: about 2 hours to Brig, then 45 minutes up.

By car

Drive to Brig, then take the cantonal road up the Rhone valley toward Mörel. Park at Betten Talstation (paid parking available). You cannot drive into the Aletsch Arena itself — the car-free policy is enforced by the cable car system being the only access.

Tickets, prices and passes

Bettmeralp cable car + Bettmerhorn gondola roundtrip: approximately CHF 55 per adult (2026 prices).

Fiescheralp + Eggishorn roundtrip: approximately CHF 52 per adult.

Swiss Travel Pass: 25% discount on most Aletsch Arena cable cars. Unlike the Alps’ highest mountains (Jungfraujoch, Titlis), the discount here is modest but not negligible — worth CHF 12-15 on a roundtrip.

Half Fare Card: 50% discount on the cable cars. The Swiss Half Fare Card offers better value than the Swiss Travel Pass for this specific destination if you don’t plan to use unlimited rail.

Summer ski pass (Aletsch Arena): In winter the same lifts serve a modest ski area. Day ski passes run around CHF 58 in the Aletsch Arena.

Children under 16 ski free or at half price at most Aletsch Arena lifts when accompanied by a parent.

What to do at the summit

Bettmerhorn viewpoint (2,872m)

The terrace at Bettmerhorn gives an almost architectural view down the glacier’s length toward the horizon. There is a panorama board identifying the surrounding peaks. The glacier surface visible below the terrace is about 1,800m wide at this point. Bring binoculars — you can spot the SAC Konkordia Hut (a mountain refuge perched on a rock island in the glacier) if conditions are clear.

Photography is straightforward here: the glacier runs roughly north-south, meaning early afternoon gives the best light in summer when the sun is in the west and illuminates the glacier surface. Morning light tends to be flat from this angle.

Eggishorn viewpoint (2,869m)

Eggishorn, accessed from Fiescheralp, is one metre lower than Bettmerhorn but faces more directly east toward the Konkordiaplatz. Most classic Aletsch photographs are taken from here. The view includes the Jungfrau group in the background, the full upper section of the glacier, and (on clear days) the Finsteraarhorn (4,274m), the highest peak in the Bernese Oberland.

Allow 45 minutes at the summit before returning — there are good walking loops at the summit level.

Villa Cassel / Pro Natura Centre

At Riederalp, the Villa Cassel — an early-20th-century mansion surrounded by its own protected forest — houses the Pro Natura visitor centre for the World Heritage Site. Free to enter, informative panels on glacier science, wildlife (bearded vultures have been reintroduced nearby), and climate change. Worth 40 minutes.

Hiking the glacier edge

In summer, marked trails allow you to walk to the edge of the glacier itself. The “Märjelensee” trail from Fiescheralp (3-4 hours round trip) reaches a small glacial lake that once held a remarkable turquoise colour from glacial silt. The lake has changed significantly as the glacier has retreated — another visible sign of change. The trail is well-marked and non-technical, but good boots and layers are essential.

Best time to visit

Late June to early October is the main summer season. Snow at the upper stations can persist into July; by late June the trails are generally clear. July and August are busy — the viewpoint terraces can be crowded at midday. Go before 10:00 or after 15:00 to avoid peak coach-tour crowds.

September and early October are arguably the best months: fewer visitors, stable weather, lower sun angle creating beautiful golden light on the glacier, and the autumn colours on the valley floor below. The cable cars run to mid-October in most years.

Winter (December to March) brings the ski season. The Aletsch Arena is a small but genuinely scenic ski area — the glacier is in the background of every run. Not a destination for advanced skiers (the terrain is mostly blue/red), but excellent for families and intermediates who want atmosphere over vertical drop.

What to watch out for: The Aletsch Valley funnels afternoon cloud up from the south. By 13:00 in summer, clouds frequently build around the summits. Mornings are statistically clearer. Check the glacier webcam at bettmeralp.ch before setting out.

Best hikes from the Aletsch Arena

Aletsch Panoramaweg (3-4 hours, moderate): A ridge walk from Bettmerhorn to Eggishorn (or vice versa), staying above 2,500m with continuous glacier views. This is one of the finest alpine ridge walks in Switzerland accessible to non-mountaineers. The route requires no technical skill but involves exposed rocky terrain — proper boots essential.

Hohbalm Trail (4 hours, moderate): From Riederalp to Moosfluh and along the glacier edge, descending back through forest to the village. The closest you can safely get to the glacier surface without a guide.

Märjelensee loop (3 hours, moderate): From Fiescheralp down to the glacial lake and back. The lake changes character each year as the glacier retreats — striking and melancholy in equal measure.

Via Alpina stage 8 passes through the Aletsch Arena — it is part of the national long-distance trail connecting Vaduz to Montreux. See our best hikes guide for context on Swiss long-distance trails.

For guided glacier hiking with crampons and rope (getting onto the ice itself), a qualified mountain guide is mandatory. The Aletsch Glacier day trip from Zurich includes access to the viewpoints and a guided walk. For those wanting the Jungfrau massif experience from the other side, the Jungfraujoch day trip lets you look down onto the glacier from 3,454m on the opposite ridge.

Where to eat

Bettmerhorn summit restaurant: Open in summer and winter, typical Swiss mountain menu — rösti, soup, Valais specialties (raclette in season, dried beef). Mains CHF 20-35. The terrace faces the glacier directly; on a clear day, eating here with the Aletsch in front of you is hard to beat.

Bettmeralp village: Several mountain restaurants and hotel restaurants. The Hotel Waldhaus and Hotel Alpfrieden both serve good Valaisanne cuisine at non-summit prices. Expect CHF 25-40 for a main course.

Fiesch village (valley): Cheaper options including a Coop, cafés, and a pizzeria. Good for a quick lunch before or after the cable car if you’re watching the budget.

Riederalp: The Pro Natura restaurant near Villa Cassel is pleasant and reasonably priced, with a nice terrace. Open in summer only.

Practical tips

Car-free rules: The Aletsch Arena villages have no cars. In summer, you simply cannot drive in. In winter, snowmobiles and ski-doos are also banned above the valley floor. This is why it’s quiet.

Weather variability: The Alps’ largest glacier creates its own local weather patterns. Even when Brig at 680m is sunny, the upper stations can be in cloud. Use the Meteoswiss short-range forecast for Bettmerhorn specifically, not the valley forecast.

Altitude: Bettmerhorn and Eggishorn are nearly 2,900m. Symptoms of mild altitude sickness (headache, slight breathlessness) are possible, especially if you’ve come from a lowland city. Move slowly, stay hydrated, and take it easy for the first hour.

What to wear: In summer, the summit stations regularly sit at 5-12°C with significant wind chill. Pack a fleece and a wind layer even in July. Proper walking shoes or boots are essential for any trail above the village — no sandals on the ridge walks.

Photography: Bring a wide-angle lens if you have one — the glacier’s breadth makes telephoto shots feel cramped. The best Konkordiaplatz images are taken from Eggishorn in morning light (late June/July) with a polarising filter to reduce ice glare.

For the full picture of Swiss mountain planning, see our getting around guide and our Swiss Travel Pass breakdown. The Bernese Oberland pass also covers some Aletsch lifts if you are combining with an Interlaken base.

Frequently asked questions

Can you walk on the Aletsch Glacier? You can walk to the glacier’s edge on marked trails without a guide. To walk on the glacier surface — with crampons, crossing crevasse zones — you must hire a certified mountain guide. The glacier has deep crevasses and the surface conditions change daily. Don’t improvise this.

Is the Aletsch Glacier visible from Jungfraujoch? Yes. From the Jungfraujoch station (3,454m), you look south over the accumulation zone of the Aletsch and down toward Konkordiaplatz. It’s a different and higher perspective than from Bettmerhorn — you are looking across the glacier’s source rather than down its length. Both views are genuinely rewarding. The Jungfraujoch from Interlaken is the classic approach to the northern view.

How long should I allow for the Aletsch visit? A half-day is the minimum for the cable car and viewpoint. A full day allows for one of the ridge walks plus time in a village. An overnight stay in Bettmeralp or Riederalp (no cars, no noise, glacier visible from your window) transforms it into something entirely different — one of the genuinely special Swiss mountain overnights.

What is the best base for visiting the Aletsch? Brig is the practical rail hub — everything radiates from here. For staying overnight near the glacier, Bettmeralp and Riederalp both have good hotels in the car-free zone. If you want easier logistics, Brig has more hotel choices and is a beautiful old town in its own right.

Does the Swiss Travel Pass cover the Aletsch cable cars? It gives a 25% reduction — not free travel. The Swiss Travel Pass covers national SBB rail to Brig, Mörel, and Fiesch fully. The private cable car operators in the Aletsch Arena participate at 25% off. The Swiss Half Fare Card gives 50% off and may be better value if you’re spending multiple days in the area.