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Old Silk Route in 3 days: Zuluk, Nathang Valley and Kupup

The Old Silk Route through East Sikkim is famous for the zig-zag road above Zuluk and sunrise over Kanchenjunga from Thambi View Point. Homestays are simple and the air is thin — this is an adventure trip more than a comfort trip.

2 nights / 3 daysBest for: Road-trippers, photographers, bikers

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Day-by-day plan

  1. Day 1

    NJP to Zuluk via Aritar and Rongli

    NJP / Bagdogra → Rongli → Zuluk ~140 km · 6 h Stay: Zuluk
    • Stop at Aritar Lake on the way.
    • Collect the permit at Rongli, then climb to Zuluk.
  2. Day 2

    Thambi View Point, Nathang Valley and Kupup

    Zuluk → Nathang → Kupup → Gangtok ~90 km · full day Stay: Gangtok
    • Sunrise over Kanchenjunga and the zig-zag road from Thambi View Point.
    • Nathang Valley and Kupup, returning to Gangtok past Tsomgo Lake.
  3. Day 3

    Depart

    Gangtok → NJP / Bagdogra ~120 km · 4–5 h Stay: —
    • Morning in Gangtok before the drive down.

Distances and drive times are approximate — mountain roads are slow and conditions change with weather.

Permits

  • Zuluk and the Old Silk Route need a Protected Area Permit, issued at Rongli — usually arranged by your homestay or operator.
  • Zuluk is widely reported as not open to foreign nationals; confirm before booking.
  • Carry a Voter ID, passport or driving licence (not Aadhaar) and passport photos.
Full Sikkim permit guide

Tips

  • Stays at Zuluk are about 10,000 ft — rest on arrival and keep the first evening easy.
  • Bikers: carry RC, licence, insurance and PUC; see verified bike rental operators if you are hiring.
  • Snow can block the route between Zuluk and Kupup in winter.
Check live road status

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