All treks are led by park rangers and usually require 1-3 hours of hiking in each direction, depending on where the mountain gorillas spent the previous night and the difficulty of the terrain. To safeguard the health of Virunga’s gorillas, visitors will be required to wear surgical masks (provided) when in the presence of gorillas. Groups are limited to six people and time with the gorillas is restricted to one hour. We believe your time with the mountain gorillas will leave you feeling changed for the better.