The dry season (May -October) is the best period. During this period, chimpanzees are likely to be seen in big groups, the sunshine illuminates the fish in the Lake and the beach is an inviting place to relax. However, Mahale Mountains National Park is accessible all year round. A visit in the rainy season can also be a memorable experience, made remarkable by views of the neighbouring country DR Congo across the water and by incredible lightning storms that light up the lake at night