I visited north Sikkim along with gurudongmar lake for a 7 day’s bike tour. It was such a delightful experience. Gangtok is a very nice place and also very disciplined clean city. People is very kind hearted and very friendly. Mg marg is main market. There have many hotels for staying. I visited lachen, gurudongmar lake. From Gangtok to gurudongmar lake is about 180km. I have seen many waterfalls when we r going gurudongmar lake. Gurudongmar lake is very cool. Temperature is nearly -10 when we reached there. But north Sikkim is really paradise.