In 1991, Nguyen Thien Hung, an army man returned to the district town and decided to conquer Fansipan. Only on the 13th attempt did Hung, with a H’Mong boy as his guide, conquer the high peak by following the foot steps of the mountain goats. Scaling the height was meant to satisfy his eager will and aspiration to conquer the mountain without expecting that his name would be put down in the travel guidebook. After that the Sapa Tourism Agency started a new package tour there. It seemed the Fansipan Tour was meant only for those who wished to test their muscular power.

The summit of Fansipan is accessible all year round, but the best time to make the ascent is from mid-October to mid-November, and again in March.

Foreigners like best to book Fansipan tours between October and December, as this period is more often than not free from the heavy rains that obstruct the jaunt. But the Vietnamese prefer their tours to the peak of the mountain from February to April, as it is not so cold then. However, the best time for the trek to the mountain is from the end of February to the start of March, when the flowers all flourish and the climbers may behold the carpets of brilliant blossoms, violets and orchids, rhododendrons and aglaias.

Source: vietnamtourism.com