Start your day with a visit to the Tsomgo Lake, known for its picturesque views of clear blue water and snow-capped mountains. You can also enjoy a yak or mule ride here.
Next, visit the Baba Harbhajan Singh Mandir, a temple dedicated to an Indian army soldier who died near the Nathula Pass. The temple is believed to have spiritual powers and is visited by many devotees.
Continue your journey to Nathula Pass, a mountain pass on the Indo-China border. The pass is located at an altitude of 14,140 feet and offers breathtaking views of the surrounding Himalayan mountains.
Stroll along the MG Marg, a pedestrian-only street in Gangtok, dotted with shops, cafes, and restaurants. You can also indulge in some souvenir shopping here.
End your day with a visit to the Rumtek Monastery, one of the largest and most significant monasteries in Sikkim. The monastery houses a golden stupa, a meditation hall, and a shrine room.
Make sure to carry warm clothes as the temperatures at Nathula Pass can get very cold. You can also consider visiting the Ganesh Tok viewpoint, Enchey Monastery, and Hanuman Tok on your way to Tsomgo Lake. For side trips, you can plan a visit to the Yumthang Valley or Pelling. To maximize your fun, try the local cuisine, interact with the people, and take plenty of pictures.