Quick Answer
The huts decide the trip, not the weather
Most hiking articles start with scenery. The thing that actually shapes a multi-day hike is more boring and more binding: a fixed number of beds, open for a fixed number of weeks.
That is why a trail’s “season” is usually the refuge season rather than the snow-free season, and why the popular routes are booked in winter for a summer walk.
VoyageHacks checked these against the managing authorities and operators in August 2026.
| Trail | Length | Typical days | Season | Booking pressure |
|---|---|---|---|---|
| Tour du Mont Blanc (FR, IT, CH) | around 165 km | 9 to 14 | mid-June to mid-September | High: refuges open bookings in January or February and popular dorms fill in days |
| Milford Track (NZ) | 54 km | 4 | 1 Nov 2026 to 30 Apr 2027 | Mandatory: no valid booking can mean a penalty or being turned away |
| GR20 (Corsica) | around 180 km | about 15 | June to mid-October | High in July and August, when the refuges are busiest |
| West Highland Way (Scotland) | 154 km | 6 to 9 | April to October | Moderate: accommodation along the route, camping legal as a fallback |
The Milford Track is the clearest case, because the Department of Conservation writes the rule down. Bookings are mandatory in the Great Walk season, and the department states that without a valid booking for your stay you may be charged a penalty, or turned away if the hut is full.
Which trail suits which walker
Your first multi-day trail: the West Highland Way
154 km from Milngavie to Fort William, usually walked in six to nine days, with accommodation the whole way and terrain that asks for fitness rather than mountain skills.
Scotland’s right of responsible access is the quiet advantage: if a bed falls through, camping is a legal fallback rather than a crisis. Plan around the midges, which are broadly a June to early September problem.
The classic alpine loop: the Tour du Mont Blanc
Around 165 km through France, Italy and Switzerland, normally counter-clockwise over 9 to 14 days, with about 10 km of cumulative ascent.
The season is set by the huts. Most open around mid-June and close near 20 September, and higher or more remote refuges close first. Reservations for the following summer commonly open in January or February, and the popular dormitories fill within days.
If you want this walk, the booking date matters more than the walking date.
The hard one: the GR20
Roughly 180 km along the spine of Corsica, averaging about 15 days, and widely considered the toughest waymarked trail in Europe.
The window runs June to mid-October, with late June to early September the reliable middle when the refuges are open and the trail is largely snow-free. Outside that, snow and ice make sections genuinely dangerous and many refuges close.
The one you fly for: New Zealand’s Great Walks
The Milford Track is 54 km over three nights and four days, in a season that runs 1 November 2026 to 30 April 2027. Bookings in that season are not a suggestion.
This is the clearest example of a trail where the trip is decided at a keyboard months earlier, not on the ground.
The two safety rules that carry most of the risk
Hiking safety advice is long. Two rules do most of the work, and both are about time rather than gear.
Set a turnaround time. The National Park Service advises deciding in advance when you will turn back if the trip is taking longer than planned, and sticking to it. Almost every benighted-hiker story is a decision to keep going when the day was already late.
Respect thunder. The National Weather Service is explicit: wait 30 minutes after the last rumble of thunder before resuming. On an exposed ridge that means descending early rather than waiting to see.
Everything else, the layers, the map, the headtorch, the water, sits in the Ten Essentials, which the National Park Service describes as the minimum items to have with you whenever you are recreating outdoors. Our hiking essentials guide works through the system, water planning, blister prevention and a day-hike kit that fits a carry-on.
What goes wrong
You booked the flights before the hut
On the Tour du Mont Blanc and the Great Walks, the bed is the scarce resource. Book the accommodation first and fit the flights around it, not the reverse.
You planned by distance instead of by ascent
A 20 km alpine day with 1,200 m of climbing is a different animal from a 20 km valley day. The TMB carries roughly 10 km of cumulative ascent over the full loop, which is the number that decides how tired you are, not the 165 km.
You went in the shoulder week
A week before the refuges open or a week after they close, the trail is quiet for a reason: the huts are shut, the passes may hold snow, and your fallback is a tent you may not be carrying.
Sources
VoyageHacks checked the season dates, distances and safety guidance on this page against the managing authorities in August 2026. Refuge opening dates shift year to year with the snowpack, so confirm with the hut or the park before you book flights.
- New Zealand Department of Conservation, Milford Track, https://www.doc.govt.nz/parks-and-recreation/places-to-go/fiordland/places/fiordland-national-park/things-to-do/tracks/milford-track/ , checked August 2026
- National Park Service, Hiking Safety, https://www.nps.gov/articles/hiking-safety.htm , checked August 2026
- National Weather Service, Lightning Safety Outdoors, https://www.weather.gov/safety/lightning-outdoors , checked August 2026
Frequently Asked Questions
When is the best time to hike the Tour du Mont Blanc?
Mid-June to mid-September, when the high passes are clear of snow and the refuges along the route are open and staffed. Most refuges open around mid-June and close around 20 September, and the popular ones fill their dorms within days of taking bookings, which for many is in January or February. The loop runs roughly 165 km and is usually walked in 9 to 14 days.
Which hikes need to be booked months in advance?
Any trail with a fixed number of beds. New Zealand’s Milford Track is the clearest example: it is 54 km over four days, its Great Walk season runs 1 November 2026 to 30 April 2027, and the Department of Conservation states that without a valid booking you may be charged a penalty or turned away if the hut is full. Alpine refuge routes work the same way in practice, because the beds are the bottleneck.
What is the single most useful hiking safety rule?
Set a turnaround time before you start and keep it. The National Park Service advises setting a turnaround time if the trip is taking longer than planned and sticking to it, precisely because most people decide to push on when the day is already running late. The second rule is lightning: the National Weather Service says wait 30 minutes after the last rumble of thunder before resuming.
How long does a long-distance trail take?
Between four days and about a fortnight for the classic European and New Zealand routes. The Milford Track is 54 km over four days, the West Highland Way runs 154 km in typically six to nine days, the Tour du Mont Blanc is around 165 km in 9 to 14 days, and Corsica’s GR20 covers roughly 180 km with an average completion of about 15 days.
Do you need a tent for a long-distance hike?
Not for most of the famous European routes. The Tour du Mont Blanc, the West Highland Way and the GR20 are all walked hut to hut or inn to inn, which is why the season is defined by when the refuges are open rather than by the weather alone. Carrying a tent buys flexibility on trails where beds sell out, and costs you several kilograms every day you walk.
What is the best first long-distance hike?
The West Highland Way. At 154 km over six to nine days it is long enough to feel like a real trek, the terrain is manageable for anyone reasonably fit, accommodation runs the length of it, and Scotland’s right of responsible access means camping is a legal fallback if a bed falls through. The midge season, roughly June to early September, is the main thing to plan around.
Ready to pick a trail?
Choose the trail by its season and its booking pressure first, then by its photographs. A route whose huts you can still book is a holiday; one whose huts sold out in February is a wish.
If the month matters more than the trail, start from where to go by month . The other travel styles cover the rest of the trip shapes, and the travel gear hub has the kit guides.