More than 300 mountaineers from around the world will try to conquer some of the planet's highest peaks during this year's spring climbing season in the Tibet autonomous region.

Adventurers from 30 countries filed climb plans with the Tibet Mountaineering Association ahead of the season, which began Monday and runs for 60 days.

"The best time to climb is the last week of May, because conducive weather factors are forecast during this period," said Sonam, the association's secretary, who predicted that 100 people would reach summits this season.