Glacier Express — Zermatt to St. Moritz
The Glacier Express is the most famous slow train in the world, and that epithet — "slow" — is genuinely accurate. At 291 kilometres over eight hours, it averages 36 km/h, which gives passengers the opportunity to watch the Rhone Valley flatten, narrow, and then fold itself into the Oberalppass at 2,033 metres before descending into the Engadine. The route passes through 91 tunnels and across 291 bridges, a figure that once seemed like marketing copy until you actually count the viaducts south of Chur.
Matterhorn Gotthard Bahn and Rhaetian Railway operate the service jointly, running year-round except for a brief maintenance window in November. The panoramic windows are triple-glazed and tilt inward slightly to reduce glare — a detail that matters enormously on a sunny summer morning when the Aletsch region is to your south. The Excellence Class dining car, introduced in 2022, offers a four-course menu sourced almost entirely from cantons the train passes through; the Valais lamb and St. Gallen bratwurst courses are particular high points. Second class with a seat reservation is sufficient for the views; Excellence Class is a separate experience closer to a restaurant with scenery attached. Reserve seats a minimum of eight weeks in advance for July and August travel.
The desk recommendation is to travel westbound (St. Moritz to Zermatt) in the morning so that the descent to the Matterhorn arrives in afternoon light. The reverse direction puts the Engadine sunrise behind you and the Valais in late-afternoon gold.
Bernina Express — Chur to Tirano (Italy)
The Bernina Express crosses the highest altitude main railway line in the Alps without a single rack segment — pure adhesion, entirely above 2,000 metres for a significant portion of the journey. The Bernina Pass summit at 2,253 metres sits above the permanent snowline for most of the year, which means that even in June the train runs between walls of compressed ice and past the Morteratsch Glacier tongue. This is the route the desk considers the single best value for dramatic scenery per franc spent in Switzerland.
The route descends from the Alpine watershed into the Poschiavo valley and then continues into Valtellina in northern Italy, terminating at Tirano. The cultural shift between the Engadine (stone houses, Romansh lettering, Reformed churches) and the Lombard foothills (terracotta tile, Italian signage, palm trees) happens in under two hours of travel and without a border formality beyond a brief passport check at Campocologno. Rhaetian Railway operate the service; the panoramic coaches use the same fleet as the Glacier Express. A combined Chur–Tirano–Lugano itinerary connecting via PostBus over the Maloja Pass makes for a logical two-day Alpine traverse. Full context on this route is available in our panoramic trains guide.
GoldenPass Line — Montreux to Interlaken to Lucerne
The GoldenPass connects Lake Geneva to Lake Lucerne across three distinct railway gauges, which until 2022 required passengers to change trains at Zweisimmen and Interlaken. The completion of the GoldenPass Express with gauge-changing bogies at Zweisimmen now allows through-running panoramic cars from Montreux to Interlaken Ost, making this the most technically sophisticated passenger train currently in operation on the Swiss narrow-gauge network. The Montreux to Zweisimmen section runs through the Pays-d'Enhaut — French-speaking Alpine pastureland with wooden chalets, cheese cooperatives open to visitors, and the kind of unhurried landscape that makes the Glacier Express feel busy by comparison.
The section from Interlaken to Lucerne via Brienz and the Brienzer Rothorn is operated by Zentralbahn on standard gauge with separate panoramic equipment. Lucerne itself is the natural end-point: the covered wooden bridge, the lake promenade, and the access to Pilatus and Rigi make it a serious base for several days. For a review of the lakeside towns the GoldenPass serves, see our lakeside towns page.
Gornergrat Bahn — Zermatt to Gornergrat (3,089 m)
The Gornergrat Bahn is the highest open-air railway in the Alps, running entirely on a rack system from Zermatt (1,608 m) to the Gornergrat summit station at 3,089 metres. The journey takes 33 minutes and gains 1,481 metres of altitude, passing through four distinct vegetation zones: pine forest, alpine meadow, dwarf shrub heath, and finally bare glaciated moraine. The summit view encompasses the Monte Rosa massif — the second-highest peak in the Alps — and a direct sightline to the Matterhorn's east face at a distance of roughly four kilometres. Twenty-nine glaciers are visible from the Gorner Ridge on a clear day.
The desk advises the first departure (typically 07:00) in summer to avoid cloud build-up and the tour-group congestion that accumulates by 09:30. The Kulmhotel Gornergrat, in operation since 1897, serves a serviceable breakfast at altitude. Return ticket: CHF 93 adult second class. The full context for this and other high-altitude vantage points is in our glacier viewpoints guide.