Fansipan is Vietnam’s tallest mountain and more than a few tackle its summit but at an altitude of 3,143 meters, climbing Mount Fansipan is no mean feat and should be organized through a tour agent. Treks are usually overnight, or even over three days, with accommodation in tents or bamboo huts located at just over 2,200 metres. Although the peak is below the lie of winter snows, it will get cold. Most groups require at least two passengers and charge $70+ per person for a two-day trek. One-day treks are available if you have the fitness for it.