What Makes Success Rates Reliable

When Toubkal is approached with a realistic itinerary, appropriate equipment and experienced leadership, success rates above 90 per cent are not exceptional, they are normal.

That’s been our experience at Monkey Mountaineering.  In 2025 we achieved 100 per cent summit success across eight trips, and over the past eight years our outcomes have consistently sat above 90 per cent.  This isn’t down to pushing harder or moving faster. It’s the opposite.

It’s the result of building trips around human physiology rather than speed, allowing time for acclimatisation, maintaining a steady pace, and making decisions based on conditions rather than schedules.

Good systems create good outcomes.

The difficulty is that these headline success figures are often presented without context.  They describe one specific style of ascent, not the increasingly popular ultra-compressed alternatives.

The Risks of the 48-Hour Itinerary

Over the last few years, 48-hour “weekend” ascents of Toubkal have become increasingly common.  The typical pattern is; Day 1: Imlil to refuge.  Day 2: summit and return to Imlil.  This compresses a 4,167-metre winter mountain into two days, with no acclimatisation day, no weather buffer, and no margin for error or recovery.

For a small number of very fit, well-equipped and experienced climbers, this can work.  But they are not the norm, and even they usually choose to build in acclimatisation because they understand how altitude works.

Based on my observations during winter 2025, success rates among groups following rapid itineraries were far lower, closer to 40 per cent, while groups taking three or four days regularly achieved success rates above 95 per cent.

The difference wasn’t motivation or toughness.  It was time.

Much of that difference comes down to underestimating winter conditions, something I’ve covered in more detail in an earlier piece on how hard it is to climb Toubkal in winter.

A compressed itinerary turns every decision into a forced decision.  There’s no space to slow down if someone struggles, no opportunity to correct equipment issues, and no buffer when weather deteriorates.

Everything must go right.  Mountains rarely cooperate with that assumption.

Why the Risk Isn’t Always Obvious

One of the challenges on Toubkal is that the danger doesn’t announce itself loudly.  Many of the risks feel subtle, particularly to those new to winter mountains or altitude.

Toubkal regularly experiences strong winds, severe windchill and prolonged cold.  In winter, much of the route, especially above the refuge, is snow and ice.  There is no centralised professional mountain rescue service in the High Atlas; evacuations are slow, improvised and far from guaranteed.  This isn’t Chamonix or the UK, where rapid rescue can almost be relied upon.

Yet it’s common to see trekkers ascending in inadequate footwear, crampons poorly fitted to trainers, groups moving too fast to stay together, or people continuing upwards without the skills or equipment needed to descend safely.

Rarely is this deliberate recklessness.  More often it’s the result of strong marketing and assumptions: that the route is easy, that a guide wouldn’t allow anything unsafe, and that help will be quick if something goes wrong.

Over time, small compromises begin to feel normal.  Near misses pass quietly. Standards drift.

This is how risk becomes normalised, not through dramatic failures, but through routine shortcuts.

This pattern is well recognised beyond mountaineering.  Sociologist Diane Vaughan described it as the concept of normalisation of deviance in her analysis of the 1986 Space Shuttle Challenger disaster.  In that case, repeated technical anomalies were gradually reinterpreted as acceptable because launches continued to succeed, until they didn’t.  The lesson is uncomfortable but clear: the absence of accidents is not evidence of safety, and success can quietly mask growing risk.

The British Mountaineering Council (BMC) maintains a public incident and near-miss reporting system where climbers and mountaineers share real-world examples of accidents and close calls.  These reports consistently show that many incidents arise not from dramatic single errors, but from small decision points, such as communication lapses, unfamiliarity with equipment, or misjudged conditions, reinforcing the importance of systematic preparation and decision-making in mountaineering.

What Makes the Difference

The encouraging reality is that none of this is inevitable.  When Toubkal is attempted on a well-designed itinerary, even adding a single extra day transforms the experience.  Acclimatisation improves, pacing becomes manageable, weather decisions are easier, and people finish the trip feeling strong rather than depleted.

Equipment plays a role too, not as a checklist, but as part of a system.  In winter that means proper boots, correctly fitted crampons, ice axes used competently, and clothing that can cope with prolonged cold and wind.

Just as important is knowing when conditions call for restraint rather than progression.

Leadership is the final piece.  Good mountain leadership isn’t about guaranteeing a summit; it’s about keeping groups together, reading conditions, and having the confidence to turn back when needed.

Summits are optional.  Safe descents are not.

Why Group Size Matters

Smaller groups consistently perform better on Toubkal, and in my experience, in the mountains more generally, particularly in winter.  They’re easier to manage, easier to keep together, and easier to support when someone struggles at altitude.  Decision-making is clearer, supervision is stronger, and pressure on refuges and local infrastructure is reduced.

There’s also a sustainability benefit.  Smaller teams allow guides and muleteers to work at a pace that protects both people and landscape, while reducing cumulative impact on a fragile mountain environment.

On Toubkal, small groups aren’t just more personal.  They’re more resilient.

Our Approach

At Monkey Mountaineering, we don’t run 48-hour ascents.  We don’t rush acclimatisation, compromise on equipment, or normalise unnecessary risk.

We build itineraries that give people the time and support they need to succeed properly.

That’s why our Toubkal Winter outcomes are consistent.  They’re based on good practice, not good luck.

Respect the Mountain

Toubkal is a remarkable mountain.  Approached in the right way, it offers one of the most rewarding first experiences of high altitude anywhere in the world, set within a rich cultural landscape and supported by skilled local communities.

Raising standards doesn’t make Toubkal harder.

It makes it safer, more successful, and more meaningful.

Toubkal isn’t an accident waiting to happen, but shortcuts turn thin margins into dangerous ones.

Avoid the 48-hour itinerary, give the mountain the time and respect it deserves, and it delivers exactly what so many people are looking for: a challenging, achievable, and genuinely transformative ascent.