The next day you leave early morning for Gurudongmar Lake which is one of the highest tourist places in whole of Sikkim and one of the highest points to visit in India. You can also visit Kala Patthar which is the Mt. Everest Base camp and is covered in snow throughout the year. Since these two places are located at an altitude of more than 17,000 ft I would highly recommend you to take proper precaution and be prepared with medicines for altitude sickness. Coming to the view it is absolutely stunning. The roads resemble that of Leh and Ladhak and the scenery is breathtaking. Though its a very dry region and you will hardly see any vegetation but it is surrounded by mountains throughout and the snow capped mountains seem so near as if you can just spread your arms and touch the snow. Gurudongmar Lake is also known as the Frozen Lake for it is frozen for most of the year and temperature is at a minus even during the afternoon hours. This is is surely a must visit place for all mountain lovers. From there you return to lachen, have lunch, rest a little and then drive/ride back to Gangtok that night itself which is quite a long drive so be prepared.
We left for Gurudongmar lake at around 5 am in the morning. In the breakfast, you will get bread and jam, Maggi and eggs. The bread was frozen which was then heated and it became very soft and yum.Although I could not enjoy the scenery due to bumpy roads, the landscape on this route is the best of all as confirmed by my friends.
So we headed and finally at 17,800ft where the sky itself can be seen in that lake which was amazing experience.