Upcoming · Sept 2026
Delhi → Hanle →
Tso Moriri
A 3,000 km self-drive loop through Kashmir, Ladakh, and Himachal.
Built around one goal: India's darkest sky on the September new moon.
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4 Sept 2026 · Delhi departure · 05:00 IST
The idea
A self-driven trans-Himalayan circuit built around one specific astronomical event:
the 11 September new moon, when the post-monsoon atmosphere
over Ladakh's Changthang plateau runs at its clearest. Three nights at
Hanle (4,500 m), home to the Indian Astronomical Observatory,
with zero moon interference and some of the darkest skies on Earth.
The route goes up through Kashmir and over Zoji La for gradual
acclimatization, spends the core days in the Changthang dark-sky zone, adds a
night at Tso Moriri, and returns to Delhi via the
Manali-Leh highway — Lachulung La, the More Plains,
and Baralacha La.
Why Hanle
- India's first Dark Sky Reserve — designated in 2022, accessible by road
- Indian Astronomical Observatory (IAO) at 4,500 m — operates India's highest optical telescope, the 2-metre Chandra telescope
- Bortle Class 1–2 — the darkest classification on the light pollution scale. Zodiacal light, gegenschein, and the zodiacal band are all visible to the naked eye
- Milky Way arch — September timing keeps the galactic core visible in the evening sky
- Changthang Plateau — average elevation 4,500 m, one of the most remote inhabited regions in India. Wild kiang (Tibetan wild ass), Tibetan wolf, and the occasional snow leopard
- 11 Sept 2026: 0% illumination — new moon night, matched to the Hanle stay
The numbers
5,059 m
Lachulung La
Highest point on the return via Manali highway. One of India's highest motorable passes.
4,522 m
Tso Moriri
One of the highest lakes in India. Overnight camp at Korzok on the shore.
3,528 m
Zoji La
Gateway to Ladakh from Kashmir. Just past Drass — the 2nd coldest inhabited place on Earth.
−2°C
Night temps
Expected overnight lows at Hanle and Tso Moriri. Full winter layers at 4,500 m in September.
Day by day
Day 01
Delhi → Jammu ~590 km · NH44 across Punjab plains
Drive
Day 02
Jammu → Srinagar ~250 km · Ramban, Banihal, Jawahar Tunnel
Drive
Day 03
Srinagar → Kargil ~215 km · Zoji La (3,528 m) · Drass
Drive
Day 04
Kargil → Leh ~215 km · Namika La, Fotu La, Lamayuru, Magnetic Hill
Drive
Day 05
Leh — Acclimatize Rest day · Shanti Stupa · EDF permit · fuel up
Rest
Day 06
Leh → Hanle ~250 km · Upshi, Chumathang, Nyoma, Loma
Dark Sky
Day 07
Hanle — Observatory Rest · IAO visit · deep-sky imaging · Astro night 2
Dark Sky
Day 08
Hanle — New Moon 11 Sept · 0% illumination · Milky Way arch · Astro night 3
Dark Sky
Day 09
Hanle → Tso Moriri ~180 km · Loma, Nyoma, Mahe, Sumdo, Korzok
Lake
Day 10
Tso Moriri → Jispa ~280 km · Tso Kar, More Plains, Pang, Sarchu
Drive
Day 11
Jispa → Manali ~120 km · Atal Tunnel · back to green and oxygen
Drive
Day 12
Manali → Delhi ~530 km · Final push home with a full memory card
Drive
What to look forward to
- Milky Way core setting over the Changthang plateau — September is the last month to catch the galactic centre before it disappears for winter
- Andromeda Galaxy (M31) high overhead at midnight — visible to the naked eye in low light pollution
- Lamayuru on Day 4 — eroded clay formations and monastery stop
- Magnetic Hill — optical illusion stop near Leh
- More Plains on the return — one of the highest plateaus in the world, dead flat at 4,600 m, with the Manali highway running straight as a ruler through it
- Tso Moriri at dawn — surrounded by 6,000 m peaks, the lake changes colour every hour. Korzok monastery on the shore. Wild kiang herds nearby
- Drass — the second coldest inhabited place on Earth after Yakutsk. Temperature has hit −60°C. In September it's a pleasant 15°C
- Atal Tunnel (9.02 km) — world's longest highway tunnel above 3,000 m. In 10 minutes you go from cold, barren Lahaul to green, lush Manali
- The entire Manali-Leh highway in one day — Lachulung La, Baralacha La, the nala crossings, Rohtang. 5,000 m to 2,000 m in a single driving day
Logistics
All-tarmac, FWD-friendly route. The entire loop is on sealed road —
no off-road sections. Grand Vitara in FWD handles it comfortably. Own white-plate
vehicle required (rented self-drives barred from Ladakh sightseeing permits).
~₹45,000 per person all-in (2 sharing, ~₹91k total). Fuel ₹20k,
stays, food, EDF permit, ₹12k buffer. September is post-peak season —
accommodation is available without advance booking at most stops.
Key constraints: One acclimatization day in Leh mandatory. Carry
15L fuel reserve for Tso Moriri → Manali stretch (long gap, no pumps). Cross
nalas early morning. EDF permit for Hanle applied online. −2°C nights.
Tight schedule with no spare days.
All treks