A four-day loop out of Bokonbayevo over the Tosor-Ashuu pass to Kokui lake, returning through the Barskoon gorge — the highest pass on the south shore.

Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu
Up from the lake shore to 3,900 m and back, in four days
Issyk-Köl south shore, Ton district, into the Terskey Ala-Too · from Bokonbayevo
- Duration
- 4 days / 3 nights
- Distance
- ~84-104 km
- Max altitude
- 3896-3900
- Difficulty
- moderate
- Best months
- End of June to end of August — a short window, set by the Tosor-Ashuu crossing
- Riding experience
- some
- Group size
- ?–10
- Price
- US$480-890 pp (~42,000-78,000 som) by group size: 1 person $890, 2 people $580 each, 3 people $520, 4 people $480. Private tours take up to 10.
- Permit
- No
Chat with a real person — free
Seif and the team reply on WhatsApp 24/7 — trip questions, custom plans and booking help.
Ask Seif on WhatsAppAbout the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek
This is the south shore's own high route, and useful precisely because it starts and ends where you are already staying. Four days out of Bokonbayevo, climbing hard on day one — nearly 1,600 m of ascent straight out of the village — then working up through Jaz-Kechuu and Kol-Bel-Ashu-Tor to cross the Tosor-Ashuu pass at around 3,900 m, the highest crossing anywhere on the Issyk-Köl side, to Kokui lake, before dropping back down the Barskoon gorge to Bokonbayevo. Between 84 and 104 km depending on the exact routing. One thing to be clear about, because the naming invites confusion: this loop does not reach Song-Köl. Tosor is where the road over the mountains to Song-Köl begins, and several trips are built around that geography, but there is no continuous horseback crossing from the Tosor pass through to Song-Köl. Multi-day itineraries that combine the two cross the pass on foot or on horseback and then drive to the lake. If Song-Köl on horseback is what you want, the Kyzart routes are the ones. What this gives you instead is a serious high loop that pairs directly with a south-shore yurt camp, and a short season — end of June to end of August — because that is when the pass is passable. Inclusions and exclusions aren't itemised, so establish them in writing.
Day by day
| Day | Route | Hours | Sleep |
|---|---|---|---|
| 1 | Bokonbayevo → Jaz-Kechuu25-30 km, +1,578 m / -447 m. The big climbing day, straight out of the village. | — | camp or yurt |
| 2 | Jaz-Kechuu → Kol-Bel-Ashu-Tor20-25 km. | — | camp or yurt |
| 3 | Kol-Bel-Ashu-Tor → Kokui lake, over the Tosor pass20-25 km over the Tosor-Ashuu pass at about 3,900 m — the high point. | — | camp or yurt |
| 4 | Kerege-Tash → Bokonbayevo via the Barskoon gorge18.5 km, -978 m. | — | tour ends |
Included
- not itemised by the operator — confirm before booking
Not included
- not published
Frequently asked questions
When is the best time for the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek?
The best time is End of June to end of August — a short window, set by the Tosor-Ashuu crossing. Outside the season the high passes are snowbound and the summer yurt camps are packed down, so most operators only run it then.
How long is the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek?
It runs 4 days / 3 nights and roughly 84-104 km, reaching about 3896-3900. Difficulty is moderate.
How much does the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek cost?
US$480-890 pp (~42,000-78,000 som) by group size: 1 person $890, 2 people $580 each, 3 people $520, 4 people $480. Private tours take up to 10. Prices vary by group size, season and operator, so confirm current rates when you enquire.
Do you need riding experience?
Some riding experience helps here (some). You should be reasonably fit and comfortable spending several hours in the saddle.
How do you book the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek?
Enquire on WhatsApp with your dates and group size, and we arrange the guide, horses, yurt nights and transfers. In July and August it's worth booking a day or two ahead.
Book the Kerege-Tash Loop from Bokonbayevo over Tosor-Ashuu trek
Tell us your dates and group, and we’ll arrange the guide, horses and yurt nights, plus the yurt stay at the end.
Chat with a real person — free
Seif and the team reply on WhatsApp 24/7 — trip questions, custom plans and booking help.
Ask Seif on WhatsApp