Difficult

Green Lake: The Honest Guide

10 daysDuration 5,050 mMax altitude SikkimRegion ₹40,000+From / pp

Overview

Trek nameGreen Lake
CountryIndia
RegionSikkim
Duration10 days
Max altitude5,050 m
GradeDifficult
Best seasonMay–Jun · Sep–Oct
Indicative cost₹40,000+
Gateway / baseYuksom / Gangtok
Rail headNew Jalpaiguri (NJP)
AirportBagdogra (IXB)
StayCamps, teahouses & guesthouses

Why do this trek?

  • In Sikkim — under Kangchenjunga.
  • Perhaps the most beautiful trek in Sikkim — following the Zemu River to the very base of Khangchendzonga. Pristine and uncrowded.
  • Climbs to 5,050 m over 10 days, graded Difficult — for experienced, well-acclimatised trekkers.
  • Best trekked in May–Jun · Sep–Oct.

About Green Lake

Perhaps the most beautiful trek in Sikkim — following the Zemu River to the very base of Khangchendzonga. Pristine and uncrowded.

Sikkim’s treks mostly trace the Kangchenjunga massif or climb toward its base camps, through some of the greenest, most biodiverse country in the Himalaya. Permits are required for most high-altitude routes — and the region is easily reached from Kolkata and the eastern plains.

Over 10 days, the trail reaches a high point of 5,050 m at a Difficult grade. The best window is May–Jun · Sep–Oct.

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Itinerary

Full day-by-day on request

We haven’t published the detailed schedule for this trek yet. Send a quick enquiry and we’ll email the complete day-by-day — altitudes, stays and the next departure dates — usually the same day.

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Best time to go

The best months for this trek are May–Jun · Sep–Oct.

JanFebMarAprMayJunJulAugSepOctNovDec
Good to trek Monsoon — avoid Off-season

The July–August monsoon is best avoided here — trails turn slippery and the landslide risk rises. Aim for the windows highlighted above for the clearest skies and safest conditions.

Difficulty & fitness

A difficult, high-altitude undertaking for experienced, well-acclimatised trekkers. Serious fitness and previous time at altitude are strongly recommended.

It tops out at 5,050 m, so sensible acclimatisation and a steady pace matter more than raw speed. Three to four weeks of light cardio — jogging, cycling, stair climbs and a couple of practice hikes — makes a real difference.

Who it suits

  • Trekkers with prior Himalayan or hill experience.
  • Those comfortable with long days and real altitude.
  • Well-prepared adventurers seeking a serious objective.
  • Photographers chasing high-mountain light.

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Getting there

Most Sikkim treks set off from Yuksom / Gangtok. Your road transfer from the gateway is normally part of a guided departure.

Permits & what's included

Most Indian Himalayan treks need forest, wildlife-sanctuary or trekking permits, usually arranged for you by the operator. Some high or restricted routes also require a registered guide.

Typically included

  • Permits & entry fees
  • Trek leader, cook & support staff
  • All meals on the trek
  • Tents / lodge stays, sleeping gear
  • Transport from the gateway town
  • Safety & first-aid equipment

Usually not included

  • Travel to the gateway town
  • Personal trekking clothing & gear
  • Personal porter / offloading (on request)
  • Tips for the mountain staff
  • Taxes (e.g. GST) where applicable
  • Anything caused by delays beyond our control

What to pack

Pack light but ready for mountain weather — warm by day, cold by night. Rent bulky gear if you’d rather not buy; own anything that touches your skin. The essentials:

Safety & acclimatisation

This trek reaches 5,050 m, so altitude — not gradient — is usually the real challenge. Ascend steadily, drink three to four litres of water a day, eat well even when your appetite dips, and tell your trek leader early about any persistent headache. Descending even a little resolves almost all mild altitude symptoms.

Mountain weather can turn quickly, so a good team builds in buffer time and will happily adjust or turn a group around when conditions demand it. Carry a small personal kit — any regular medication, lip balm, blister plasters and a reusable bottle — on top of the group first-aid, and treat the mountains with the respect they deserve.

Green Lake FAQ

Is the Green Lake good for beginners?

It is graded Difficult, so it is better suited to trekkers with some hill experience, good fitness and ideally prior time at altitude — not a first-ever trek.

When is the best time for the Green Lake?

The best window is May–Jun · Sep–Oct. Avoid the July–August monsoon unless the trek is specifically a monsoon route.

Can you do the Green Lake without a guide?

It is strongly discouraged. The route involves real altitude and serious terrain, and permits plus local knowledge make a guided trip far safer.

How cold does it get / what is the weather like?

The best months are May–Jun · Sep–Oct, when days are pleasant. It still gets cold at night near 5,050 m, so pack warm layers regardless of season.

How many days do you need?

Plan for 10 days on the trail, plus travel to and from the trailhead. In winter or for remote routes, keep a buffer day for delays.

How much does the Green Lake cost?

A guided departure is around ₹40,000+ per person, varying with group size and dates. Send an enquiry for the current all-in price.

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