Sri Lanka, Aug. 12 -- Nepal will make 97 of its Himalayan mountains free to climb for the next two years in a bid to boost tourism in some of its more remote areas.

It comes as permit fees to summit Mount Everest, the world's highest peak, during peak season will go up to $15,000 (£11,170) from September - the first increase in nearly a decade.

Nepal's tourism department said it hopes the initiative will highlight the country's "unexplored tourism products and destinations".

Mountaineering generates a significant source of revenue for Nepal, which is home to the world's 10 tallest mountains. Climbing fees brought in $5.9m last year, with Everest accounting for more than three quarters of that.

The peaks for which fees will be wai...