The beautiful TSONGO LAKE formed out of a glacier makes it among the top places to visit in Sikkim. There are other lakes in the Northern Region too like the GURUDONGMAR which is the highest lake in the world located at a height of 178000 ft. During spring YUMTHANG VALLEY popularly known as the valley of flowers is a sight to behold as it’s enveloped by the exotic rhododendrons, Primulas, Blue and Yellow Poppies.