Which is better Kheerganga or Nainital?

There is no direct answer, here is some info to help you decide for yourself

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Kheerganga vs Nainital

Max Elevation

2,813m / 9,226ft
1,945m / 6,379ft

Popular for

Trekking, Mountains And Nature
Mountains, Nature And Lake

How to reach

The trek to Kheerganga starts from Barshaini, which will be your nearest road head if you are coming via a taxi, are self-driving, or coming by public transport.
Nainital doesn't have flight connectivity. But it can be reached via train or bus. It's also connected with road so you can hire a taxi, or self-drive to reach here if you like.

Popularity

Very popular.
Crazy popular. You'll find the whole world there!

Places

Kheerganga map

Places to visit in Kheerganga:

Kheer Ganga Hot Springs
Nainital map

Places to visit in Kheerganga:

Nanital Mall Road, Naina Peak, Ayarpatta, Mallital Nainital, Amghari