Why use Glidr at Les 3 Vallées
Les 3 Vallées is the largest linked ski area in the world. Six hundred kilometres of marked pistes connect eight resort bases — Val Thorens, Les Menuires, Méribel, Courchevel 1850, Courchevel 1650, Courchevel 1550, Le Praz, and Saint-Martin-de-Belleville — across three mountain valleys above Moûtiers in the French Alps. The sheer size is the point: on a clear day you can ski from the summit of the Cime Caron at 3230 m all the way down to Le Praz at 1300 m without repeating a single piste.
The inter-valley connections are what make the area special, and also what makes navigation genuinely useful. The lift chains between valleys are not always obvious — the route from the top of Val Thorens to Courchevel 1850 involves a specific sequence of cable cars and chairlifts that changes depending on time of day and which lifts are running. Glidr's routing engine knows the full Les 3 Vallées lift graph, including all inter-resort connections, so when you pick a destination in Courchevel from a chair in Val Thorens, Glidr plans the complete lift chain and the piste descents between each lift — not just a heading on a map.
Navigation at Les 3 Vallées also matters because the area's scale makes it easy to ski further than intended. Dropping into the wrong valley late in the afternoon means a long lift journey back. Glidr monitors your position against your planned route in real time and alerts you before a junction where taking the wrong piste would send you off-plan — useful when you're tired and the valley below looks inviting.
Live lift and piste open/closed status is shown directly on the map for the full Les 3 Vallées domain through the Lumiplay integration. You can see at a glance which lifts are running before you ski to the bottom of a slope. The map downloads once and then runs fully offline, so patchy mobile signal on the upper mountain does not interrupt navigation.
How the four valleys connect
Les 3 Vallées takes its name from the three natural valleys that run roughly south to north above Moûtiers — the Belleville valley to the west, the Allues valley in the centre, and the Saint-Bon valley to the east. The eight linked resort bases sit at different altitudes across those three valleys, but the mountain ridges between them are crossed by lift lines at the top, so the connections happen high up and the descents into the next valley open from there. Practically this means that crossing from one valley to the next always involves climbing first.
Val Thorens sits at the far western end, at the head of the Belleville valley, sharing its high terrain with Les Menuires and Saint-Martin-de-Belleville further down the same valley. The ridge separating the Belleville and Allues valleys is crossed mid-mountain, dropping you into Méribel's bowl. A second ridge separates Méribel from the Saint-Bon valley where Courchevel's family of bases sits — 1850, 1650, 1550, and Le Praz down at the valley floor. Crossing all three valleys end-to-end in a single run is genuinely possible on a good day.
That geography is what makes a navigation app useful here. The junctions at the inter-valley passes are high-traffic and signposted, but reading a paper piste map on a windy ridge while deciding which way to traverse is not how most people want to spend their day. Glidr downloads the full domain as a single offline map — all 600 km, 156 lifts, all eight resort bases — so the routing engine can plan a continuous chain of lifts and descents across whichever valleys you want to cross, without needing a signal at the top.
Planning a day across Les 3 Vallées
The strategic challenge of skiing a 600 km domain is not running out of things to ski — it is managing the clock. The lifts that bridge the inter-valley passes are the ones that close earliest in the afternoon, and once they shut the only route back is the long way round. Getting stranded in Courchevel when your accommodation is in Val Thorens is a memorable experience, but not a pleasant one. Experienced skiers know to track the time and plan a return route before the critical lifts close; everyone else tends to find out the hard way.
Glidr's Day Planner addresses this directly. You set your start time, your base, your skill level, whether you want to bring your own lunch or stop at a mountain restaurant, and a goal for the day — maximize pistes covered, easy cruise, maximize vertical, or scenic. The planner generates a full-day itinerary built around the actual lift and piste graph, so it accounts for lift travel time across valley crossings and schedules the return leg to get you back before the key inter-valley links close. Live lift status from the Lumiplay feed is overlaid on the map throughout the day, so if a link closes unexpectedly the app shows the closure in place.
For those who prefer to ski freely rather than follow a plan, the always-on route navigation mode lets you set any lift, piste, or resort as a destination and Glidr builds the optimal route from your current GPS position, including intermediate lifts. Change your mind halfway down a run — tap a new destination and the route replans from where you are. The flat-section warning system also covers the inter-valley connector traverses that are unavoidable for snowboarders: Glidr alerts you before you reach one so you can maintain momentum rather than get caught unaware.
Which valley suits which skier or snowboarder
The three valleys have genuinely different characters, and choosing a base that matches your riding style makes a meaningful difference to how your week feels. The Belleville valley — Val Thorens and Les Menuires — sits highest and faces north, which keeps the snow in good condition later into the season. The skiing here is predominantly open and above the treeline, with a concentration of the domain's higher reds and blacks. Riders who want to stay high and push hard tend to favour this valley. Val Thorens in particular is one of the most snow-reliable bases in the Alps given its altitude, which means it holds its conditions when the lower resorts are struggling late in spring.
Méribel, in the central Allues valley, is the geographic heart of the domain and often the most practical base for those who want to cover all three valleys in a day, since it sits on the ridge separating Courchevel from the Belleville valley. The terrain around Méribel mixes open bowl skiing with some tree-lined runs lower down and suits intermediate riders well. Its position also makes it the natural staging point for the full traverse of the domain.
Courchevel, at the eastern end, is the most varied in terms of base altitude. The highest base at 1850 m gives direct access to the upper mountain, while the lower villages down to Le Praz at 1300 m appeal to families looking for a traditional village feel. The lower slopes around these bases are gentler and more protected, making this part of the domain the most beginner-friendly entry point into Les 3 Vallées. Whichever base you choose, the full 600 km remains accessible from any of them given enough time on the lifts — Glidr's cross-valley routing covers the complete domain regardless of where you start.
