There's a border patrol checkpoint between Middle Kolsai and Upper Kolsai. Sometimes they let foreigners through. Sometimes they don't. None of the English-language guides I've read mention this.
Most of the local Kazakh and Russian-speaking operators who run Kolsai trips don't market in English, and the reason is structural — they run large group tours, and the economics don't work for small private groups on fixed schedules. Which means the English-speaking visitor planning this trek is usually working off generic blog posts written by people who hiked here once.
I've done these hikes multiple times — solo, with friends, with customers. Here's what I think is important to know before committing.
The Three Lakes, Briefly
The Kolsai system is three glacial-fed lakes stacked at different elevations in the Kungey Alatau range, about 300 kilometres east of Almaty. Locally they're often called the Pearls of the Tien Shan — and on a still morning at the Middle Lake, you understand why.
- Lower Kolsai (1,818m) — accessible by road, has guesthouses and a parking area. This is where most day visitors stop.
- Middle Kolsai (2,252m) — 8 kilometres up from Lower, the largest by surface area, and in my opinion the most beautiful of the three. The realistic target for a serious day hike.
- Upper Kolsai (2,700m) — another 6 kilometres beyond Middle, surrounded by pine forest and lush vegetation rather than the bare alpine terrain you'd expect at that elevation. The border patrol checkpoint sits between Middle and Upper.
What's Doable on Your Own
If you're a fit hiker with mountain experience, two things are achievable solo with proper planning.
The Middle Lake day hike. Roughly 16 kilometres round trip, about 700 metres of elevation change. A well-conditioned person can do it in 5–9 hours depending on weather.
The trail is well established, and GPS coverage is fine. What's not fine is phone signal — there isn't any once you're past the trailhead. You can't call for help if something goes wrong, which means filing a hike plan with emergency services before you set out (date, time, route, expected return time, emergency contact) isn't optional — it's the law.
Maps.me or any offline maps app is still worth having. The trail does fork in places; one wrong turn costs you a few minutes, another sends you all the way back to the carpark.
Bring water and food — this is a calorie-demanding trek. Hiking poles are not optional. Even light rain turns this trail into a slip-and-slide of clay and pine needles, and waterproof hiking boots stop being a luxury and start being a safety requirement. Best window is late April through mid-October.
Overnight camping at the Middle Lake. Bring a proper tent, a temperature-rated sleeping bag, a sleeping pad, and a gas burner for hot food. The lake water is safe to drink — don't haul water up the mountain, it's a waste of weight. Nights are cold even in summer at 2,252m.
These two options are within reach for an experienced solo hiker with the right gear.
A Word About Horses
For travellers who want to see the Middle Lake but aren't up for the 16-kilometre round trip on foot, horses are a legitimate option. Local horsemen run rides from the Lower Lake up to Middle Kolsai and back. It's not a compromise — the lake doesn't get any less beautiful because you arrived on horseback.
Horses also serve a more important purpose. If someone in the group gets injured on the trail — a turned ankle, a fall, anything that makes self-evacuation impossible — horses are the realistic way out. No helicopter is coming to a remote section of the Kungey Alatau. The horsemen at the trailhead know this and can be mobilised quickly. On a private guided trip, that contingency is built into the planning.
What's Possible With Some Luck
The Lower → Middle → Upper → return day trek is what most ambitious hikers want to do. 28 kilometres round trip, 1,400+ metres of cumulative elevation change.
The Middle-to-Upper section is what most visitors never see — and it's the most visually rewarding stretch of the entire system. The trail winds through pine forest, interrupted by large open clearings — whether from wind damage, border patrol sightlines, or some natural cause, I've never been able to figure out. Footbridges cross glacial streams. And at one point, the river emerges directly out of the mountain — flowing from beneath the rocks rather than down them. The kind of detail you don't get from a viewpoint at Lower Kolsai.
It's only doable as a day trip during summer months. Winter is still fine for hiking the lower sections, but the 10-hour daylight window makes completing the full three-lake circuit virtually impossible. Even in summer, you need to start at the Lower Lake by 4:30–5:00 in the morning. And the border patrol has to let you through.
The trail past Upper Kolsai doesn't end at the lake. It continues over the Sary-Bulak Pass at 3,278 metres, directly to Lake Issyk-Kul on the Kyrgyzstan side. The Kazakh border guards staff a checkpoint between Middle and Upper Kolsai because this is, technically, an international border crossing route that happens to also be a tourist hike. They decide on the day whether foreigners continue. Sometimes they hold your passport or national ID at the checkpoint for you to collect on the way back — that's not an authority exercise, it's a safety mechanism to make sure everyone who went up actually came back down. I've had it go both ways. Bring your passport. Be polite. Have a plan B.
What I Actually Recommend
Plan an overnight camp at the Middle Lake. Drop your heavy gear there. On day two, attempt a 5-hour round trip to the Upper Lake, leaving early — you'll still have a 2–3 kilometre approach hike before you reach the checkpoint.
If they let you through, you get one of the most beautiful sections of trail in the country. If they don't, you come back to camp, eat a real lunch, and head down before dark. Either way the trip works.
This is the only sensible approach for an English-speaking visitor who wants the full Kolsai experience without a tour bus or a fixed-schedule weekend group.
A Note on Existing Operators
A handful of local companies run Kolsai trips and do them well — but they run on their own schedules, usually weekends, usually without the camping option, usually with larger groups. They're a fine fit for travellers who can flex their dates and don't mind a bigger group. Weekends at Lower Kolsai can get genuinely crowded.
For the trip I just described — overnight at Middle, attempt at Upper, English-speaking — you're looking at private guiding. That's what ArnaJol does. I'll handle the gear, the cooking, the timing, the conversation with the border patrol, and the contingency planning if they say no.
If you want the rest of the caveats — the gear-shop logistics in Almaty, the seasonality details, the road conditions in early spring or late autumn — get in touch. There's plenty more to say than fits in one post.
— Anton, Almaty's 2nd best guide
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