Humantay Lake day diary: a 4am start and a turquoise payoff
4:00am — the alarm I regretted instantly
The Humantay Lake day trip is sold to you as a casual day out and experienced as a small endurance event, and the gap between those two things starts with the pickup time. My van collected me from near the Plaza de Armas at around 4:30am, which meant a 4:00 alarm, which meant going to bed at a time I’m not proud of having ignored. I climbed into the van half-asleep and faintly resentful, clutching a bread roll the hotel had left out, and we set off into the dark.
This is a diary of that day, more or less hour by hour, because the experience is really about the rhythm of it — the early grind, the climb, the payoff — and a tidy guide flattens all that out.
4:30–7:30am — the long drive and the breakfast stop
The drive out toward Mollepata and the Soraypampa trailhead takes roughly three hours, and most of it I spent dozing against the window. Somewhere along the way we stopped at a simple roadside place for breakfast — bread, eggs, coca tea, instant coffee — included in the tour price, and honestly necessary. Don’t skip it even if you’re not a morning eater; you’ll want the fuel for what’s coming.
The landscape changed as we climbed, the towns thinning out, the mountains getting bigger and whiter. By the time we reached the trailhead the air had that thin, cold, bright quality you get at real altitude. Which brings us to the part the brochures undersell.
7:30am — the trailhead, and the altitude reality check
The trailhead at Soraypampa sits at around 3,900 metres, and the lake is up at roughly 4,200 metres (about 13,800 feet). That’s higher than Cusco itself, which is the bit people forget. If you haven’t acclimatised properly in Cusco or the Sacred Valley first, this hike will absolutely humble you. I’d had four days in Cusco beforehand and I still felt it.
This is the single most important thing I can tell you about Humantay: do not do it on your first or second day in the region. The combination of the altitude and the steep climb is genuinely tough on an unadjusted body, and I watched several people in my group struggle badly because they’d flown in two days earlier. The Humantay Lake day trip guide is blunt about this and so am I.
7:30–9:00am — the climb, which is short and brutal
The hike to the lake is not long — maybe an hour to ninety minutes of actual walking, depending on your pace — but it is steep and it is high, and at that altitude even a moderate slope turns your legs to concrete and your breathing into something embarrassing. I’m reasonably fit at sea level and I was stopping every few minutes to suck in air and pretend I was admiring the view.
There are horses for hire at the bottom — locals lead you up for a fee, somewhere around S/80–100 (USD 22–27), negotiable. I walked it on principle and slightly regretted that principle around the halfway mark. There’s no shame in the horse; a chunk of my group took one and arrived fresh while I arrived purple. If altitude or fitness is a concern, just budget for the horse and enjoy the day.
9:00am — the lake, which actually lives up to it
I’m cynical about places that are over-photographed, and Humantay is extremely over-photographed. So I want to be honest: it genuinely delivers. You crest the final rise and the lake is just there, an almost unreal milky turquoise sitting beneath the Humantay glacier, with the snow and ice rising straight up behind it. The colour is real — it comes from glacial silt — and it’s more vivid in person than in the photos, which is the opposite of how these things usually go.
I spent about an hour up there. People do the obligatory jump photos, some build little stone apachetas (offerings), and a few brave/foolish souls dip a hand in the water, which is glacier-cold. I just sat on a rock and got my breath back and looked at it, which felt like the right use of an hour I’d suffered to earn. The Humantay Lake destination page has more on the geology and the Salkantay backdrop if you’re curious about what you’re looking at.
10:00am–noon — back down, and the descent that isn’t free
Going down is faster but not effortless — loose stone, your knees taking the impact, and the same thin air. I made it back to the trailhead in about 45 minutes, considerably more cheerful than I’d gone up. By noon-ish we were back in the van for the long ride home, which I again slept through.
~3:00pm — back in Cusco, wrecked and satisfied
We rolled back into Cusco mid-afternoon, the whole van quietly knackered. I’d been up since 4am, climbed to 4,200 metres and back, and spent six hours in a van. I went straight to a café, ate an enormous lunch, and was asleep by nine. It is a full, draining day, and you should plan a soft evening after it rather than booking anything.
What it cost and what I’d book
I paid around S/120 (about USD 32) for the group tour, which included transport, breakfast, lunch and entry. That’s the going rate and it’s genuinely good value for a 12-hour day with two meals. The cheap tours pack the vans tighter and rush you; the slightly pricier small-group ones give you more time at the lake, which is the bit you actually came for. This is roughly what I’d book if I were doing it again.
Humantay Lake tour and hike from CuscoWhat I packed, and what I wished I had
The Humantay weather is a moving target — freezing pre-dawn at the trailhead, warm and sunny by the time you’re climbing, brutal sun glare off the snow at the lake, then cold again the moment a cloud passes. I dressed in layers and was glad of it: a warm top for the early hours, peeling down to a t-shirt on the climb, then piling layers back on at the windy, exposed lake.
The things I got right: sunglasses and serious sunscreen, because the high-altitude sun is vicious and I watched unprotected people go lobster-red within an hour. A hat. Water, more than I thought. The things I got wrong: I brought too little cash, and there are small stalls selling drinks and snacks along the way plus the horse hire, all cash only. Bring more soles than you expect to need. The Humantay Lake destination page has more on conditions up there.
Should you do Humantay or Salkantay instead?
Worth knowing: the Humantay Lake day trip uses the same trailhead area as day one of the multi-day Salkantay trek. Trekkers on Salkantay pass right by Humantay, often camping near it. So if you’re already planning the Salkantay trek to Machu Picchu, you’ll see the lake as part of that and don’t need a separate day trip.
The standalone day trip is for people who want the lake without committing to a multi-day high-altitude trek — which was exactly me on this trip. If you’ve got the time and the legs, though, the Salkantay trek guide covers the bigger adventure that starts in the same spot. Doing the day trip first also makes a decent acclimatisation and fitness test for whether you’re ready for the full trek.
Is it worth it? Yes, with conditions
Humantay is worth the brutal early start and the lung-busting climb — the lake really is that beautiful, and unlike some over-hyped spots it earns its reputation. But it is not a gentle day out, and the people who have a bad time are almost always the ones who underestimated the altitude or did it too early in their trip.
So: acclimatise first, accept the 4am alarm, take the horse if you’re not sure about the climb, and give yourself an easy evening afterwards.
If you’re weighing it against the other big day trips, the is Rainbow Mountain worth it piece is a useful companion — they’re both high, both early, both spectacular, and you don’t necessarily need to do both. My honest take after doing both: Rainbow Mountain has the more famous colours but feels more crowded and more of a circus; Humantay is the quieter, more genuinely beautiful spot, and the turquoise of that lake under the glacier edged it for me. If you only have time and energy for one big-altitude day trip and you’re choosing on which left a deeper impression rather than which is more Instagram-famous, I’d send you to Humantay.
A final practical thought: because the day is so long and draining, don’t stack it next to another demanding day. I made the mistake on a later trip of booking a hard day trip the morning after Humantay and spent it wrecked. Give yourself a genuinely soft day on either side and you’ll enjoy the lake far more. Personally, Humantay was the one that stuck with me — and I’d happily set another 4am alarm to go back.
