
Eki-Naryn to Bokonbayevo over the Tosor-Ashuu Pass
Seven days across the Terskey Ala-Too, ending at the lake
Naryn province into Issyk-Köl province, crossing the Terskey Ala-Too · from Eki-Naryn
- Duration
- 7 days / 6 nights
- Distance
- ~169.3 km
- Max altitude
- 3,893 m
- Difficulty
- moderate
- Best months
- Mid-June to September
- Riding experience
- some
- Permit
- No
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Ask Seif on WhatsAppAbout the Eki-Naryn to Bokonbayevo over the Tosor-Ashuu Pass trek
This is the long crossing: from Eki-Naryn in Naryn province, over the spine of the Terskey Ala-Too, down to Bokonbayevo on the Issyk-Köl south shore. Seven days, 169 km, and — the detail that defines it — every single day is a full riding day of six to eight hours, with no rest day and no road support once you leave Eki-Naryn. All six nights are in tents. There is no yurt night and no guesthouse until you reach the far side. Day six is the crux: 33 km with 1,345 m of ascent and 1,690 m of descent, crossing the Tosor-Ashuu pass at 3,893 m. Day seven then loses another 1,880 m to the lake. Along the way you cross the Kalak-Tash jailoo, where herder families are in residence in season, and pass Teshik-Kul lake at 3,727 m on day four. It is graded moderate, and in terms of technical difficulty that is fair, but the profile is demanding for anyone not used to consecutive long days in the saddle at altitude — some prior riding experience is genuinely needed. No border permit is required, unlike the Chatyr-Köl and Kel-Suu routes. The operator publishes excellent per-day distances and elevation figures but no price and no itemised inclusions beyond meals, so settle both in writing before you commit.
Day by day
| Day | Route | Hours | Sleep |
|---|---|---|---|
| 1 | Eki-Naryn → Oruk-Tam valley+310 m / -80 m. Straight into a full riding day — the longest first day of any route here. | 6-7 in the saddle, 28.8 km | tent |
| 2 | Oruk-Tam valley → Kara-Kaman river+683 m / -527 m. | 6-7 in the saddle, 22 km | tent |
| 3 | Kara-Kaman river → Kalak-Tash jailoo+222 m / -100 m. Summer pasture, with herder families in season. | 7-8 in the saddle, 20 km | tent |
| 4 | Kalak-Tash jailoo → Uch Emchek valley via Teshik-Kul lake (3,727 m)+913 m / -749 m. The biggest climb so far, past a high lake. | 7-8 in the saddle, 23 km | tent |
| 5 | Uch Emchek valley → Camp below the Tosor-Ashuu pass+663 m / -236 m. Positioning day. | 7-8 in the saddle, 22.5 km | tent |
| 6 | Tosor-Ashuu Pass (3,893 m) → Kol-Bel jailoo, 3,000 mThe crux: +1,345 m / -1,690 m, the longest distance and the biggest ascent and descent of the trek. | 7-8 in the saddle, 33 km | tent |
| 7 | Kol-Bel jailoo → Bokonbayevo+500 m / -1,880 m — a huge descent to the Issyk-Köl shore. | 6-7 in the saddle, 20 km | village accommodation |
Included
- all meals
- a full inclusions list is not itemised by the operator
Not included
- not published — establish this before booking
Book the Eki-Naryn to Bokonbayevo over the Tosor-Ashuu Pass 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