Bhutan is known for its natural beauty, forest conservation, gross national happiness, great culture & heritage, and biodiversity.The culture is different as it has been shut off from the rest of the world for so long with the focus today on high value tourism that doesn't impact on its environment. Autumn is from October to November when it's generally sunny with some snow at higher elevations. Late November to early March is dry with pre-monsoon showers starting in May. The best time to visit Bhutan is during the spring months of March to May when the valleys come alive with flowers in bloom.