The immense beauty of the Himalayas is contained in its diverse landscape. From the lowlands of the south where the weather is more sub-tropical and the land more lush to the rich farmland of the central valleys to the high peaks close to the Tibetan border, Bhutan s land changes with the altitude and with the latitude. In the east, where the valleys are narrower, towns such as Trashigang and Mongar are built on the sides of hills. The land also changes with the strikingly different seasons. In winter the high peaks and most of the northern land are constantly snow-covered.
Snow falls sporadically on the central valleys and the days are crisp.
In Thimphu and Paro, winters are surprisingly mild with only a few snow falls each year. The skies above the high mountain passes are mostly clear in winter and visitors are able to view the entire Himalayan range. Spring is rhododendron season in Bhutan. The mountain-sides all over the country are ablaze in shades of red and orange. Days are warm but nights are still cold.