Month by month
Two things change through the year and they happen to move together. One is the proportion of mornings settled enough to put walkers on the ice. The other is what the ice itself is doing — whether the blue tunnels and pressure ridges are open, or buried under a metre of snow. Both point at the same answer, which makes this an unusually easy question.
Quick answer
The short answer. February to April. Late-summer melt has opened the tunnels and the blue features, the air is the most settled it gets all year, and the summer crowds have gone. Whichever month you choose, book the first departure of the day and allow two nights in the village.
The year in four parts
Ranked on the two things that decide your day: how often the weather lets a hike run, and what the glacier looks like underfoot when it does.
Feb – Apr
The answer to this page. The most settled air of the year, and late-summer melt has carved the tunnels and opened the blue features. Fewer visitors than January and cheaper beds. If you can pick your month, pick one of these three.
Nov – Jan
The longest daylight and the fullest schedule, which genuinely helps if you are rebooked. Also the most people competing for the good mornings, and the ice is still emerging from winter snow at the start of it. Book ahead and take an early slot.
Sep – Oct
Snow still covers much of the crevasse field, so the route is simpler, whiter and has fewer of the features people come for. Fronts come through quickly. Cheap, quiet, and a gamble.
May – Aug
Short days, a thinner schedule and the lowest proportion of workable mornings, with long spells when a system parks over the coast. When it is clear the light is the best of the year. Book three nights, not one.
Time of day
Book the earliest slot the operator offers. Best air, best route, best light, best fallback.
Whatever month you choose, the hour matters more than the date.
The air. It is stable early and increasingly unstable as the sun works on the glacier. By late morning the valley has begun to move and cloud builds against the Main Divide. Afternoon departures are the ones that get stood down.
The route. Guides are on the ice from about seven cutting steps. The first group of the day walks the freshest route, before eleven pairs of crampons have worn the steps down.
The light. Low morning sun enters the tunnels and the crevasses at an angle and lights them from inside. At midday it comes straight down and the blue goes flat.
The insurance. If the first slot is cancelled, there is a whole day behind it to move you into. If the last one is cancelled, there is nothing.
Planning
None of these changes with the season.
One night gives you one morning and roughly even odds. Two give you two mornings and an afternoon. This is as true in March as it is in July.
Book the hike for the first full day of your stay so a cancellation has somewhere to go.
A heli hike costs the same in January and in June. What changes is what you pay for a bed and how many people want your slot.
The clothing advice does not change with the calendar. Bring the warm layer in February.
There is no walk-up discount, and the morning slots go first. Free cancellation to twenty-four hours means booking early costs you nothing.
Want the full picture on how often trips are actually stood down?
Weather and cancellations→Book direct
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Common questions
February to April. Late-summer melt has opened the blue tunnels and the ice features, the air is at its most settled, and the summer crowds have gone. It is a rare case where the best weather and the best ice line up.
The first departure. The air is stillest early, the route has just been cut, low sun lights the tunnels from inside, and a cancellation still has the rest of the day behind it.
When it is clear, winter gives the best light of the year and an almost empty glacier. The risk is that winter systems can park over the coast for days. Book winter with three nights, not one.
No. Trip prices do not move with the season. What changes is the cost of a bed in the village and how many people are competing for the good morning slots.
February to April, when there is most meltwater moving through the glacier. In spring the same features are buried under snow and the walk is simpler and whiter.
In December to February, as far ahead as you can — the morning slots go first. In the shoulder months a few days is usually enough. Free cancellation to twenty-four hours means booking early carries no cost.
Go deeper
What it is, what it costs, and why there is no way onto the ice without one.
PricesThree heli hikes priced against the scenic flight, and what the money actually buys.
VerdictThree heli hikes compared on time on the ice, group size and what is included.
Hike or flyThe most common wrong booking in Franz Josef, settled with both sets of numbers.
Hour by hourFrom the boot fitting to the pick-up, in order, with the boring parts left in.
Which oneTwo glaciers, two villages, and which one to put your only clear morning into.
