The checkpoint at Koto is unremarkable — a wooden hut, a ledger, a soldier who barely looks up from his phone. But the stamp he presses into my permit is the line between the Annapurna Circuit's well-worn trail and something else entirely. Past this point, the Nar Phu valley belongs to a different century.
The Canyon Swallows the Sky
Within an hour of leaving Koto, the trail drops into the Phu Khola gorge, and the world narrows to a ribbon of grey rock and green water. The canyon walls climb hundreds of metres on either side, close enough in places that the afternoon sun never quite reaches the trail. I remember thinking it felt less like walking through a valley and more like walking through a crack in the earth.
For two days it stays like this — wooden bridges over the roaring Phu Khola, the occasional shepherd's hut, no other trekkers. By the time we reach Kyang, a cluster of stone huts wedged into the canyon wall, I hadn't seen another human outside our small group in over 30 hours. In a country as popular as Nepal, that kind of solitude is rare and worth noticing.
Phu: A Village That Time Forgot
The canyon releases without warning. One moment we're hemmed in by rock; the next, the valley opens into a wide, wind-scoured plateau, and there — impossibly high on a cliff face — is Phu village. Stone towers, prayer flags, a monastery clinging to the rock like it grew there.
Phu was closed to outsiders until 2002, and it shows. The houses are built the way they've been built for centuries — thick stone walls, flat roofs stacked with firewood, courtyards shared between families and their livestock. I sat for an hour with a woman weaving wool on a traditional loom while her grandson herded yaks past the doorway, entirely unbothered by our presence. Nobody performs for visitors here. This is simply how life continues.
We visited Tashi Lhakhang Gompa, the ancient monastery above the village, where a young monk showed us murals faded almost to shadow, centuries old, still holy.
Nar: The Busier, Warmer Cousin
A day's walk south, Nar village feels different — more populated, more animated, its monastery humming with activity. Kids ran between houses. Someone was repairing a roof. After the profound quiet of Phu, Nar felt almost like a return to the world, even though it's every bit as remote.
We spent our acclimatisation day here hiking toward the base of the Kang La, the pass that would define the following morning. From the ridge above Nar, the entire Annapurna range stood in a long unbroken wall — Gangapurna, Annapurna II, Tilicho Peak, close enough that the scale of the mountains stopped registering as scenery and started registering as something closer to weather.
Kang La: The Reckoning
We left at 4:30am. The Kang La sits at 5,320m, and the final push is a long, grinding, switchbacking climb in the dark, headlamps cutting cones of light into the frozen air. Nobody talked much. Altitude does that — it turns conversation into an unaffordable luxury.
We crested the pass just as the sun cleared the eastern ridgeline, and the entire Annapurna Sanctuary opened beneath us in one of those views that photographs never quite capture: Tilicho Lake a pale disc far below, the Chulu peaks catching first light, the whole Manang valley laid out like a map. A fellow trekker I'd barely spoken to on the ascent grabbed my arm and just pointed, wordless. That was the whole conversation. It was enough.
The descent to Ngawal, back on the main Annapurna Circuit, felt disorienting — teahouses, other trekkers, phone signal. After a week in Nar Phu's silence, the ordinary world of the Circuit felt almost loud.
Why It Stays With You
I've done longer treks and higher passes since, but Nar Phu occupies a different part of memory. It wasn't the biggest mountain or the hardest day — it was the sense, walking through that canyon and standing in those villages, of having found something that hadn't yet been smoothed over for visitors. If you want the full route breakdown, permits, and costs, the complete Nar Phu Valley Trek guide has everything you need to plan your own. But no itinerary really prepares you for that first sight of Phu village on the cliff above the canyon. Some things you just have to walk into.