Visit the Enchey Monastery, known for its stunning architecture and religious significance. Explore the Namgyal Institute of Tibetology, which houses a vast collection of Tibetan artifacts and manuscripts. Head to the Do Drul Chorten, one of the largest stupas in Sikkim. Optionally, visit the Flower Exhibition Centre to admire a variety of local and exotic flowers.

Take a day trip to Tsomgo Lake, a glacial lake located at an altitude of 12,313 feet. Continue your journey to Baba Mandir, a revered shrine dedicated to Baba Harbhajan Singh, a soldier of the Indian Army. Enjoy the scenic beauty en route and spend some time at the lake and shrine. Return to Gangtok in the evening and explore the local markets.

Drive to Rumtek Monastery, one of the largest and most significant monasteries in Sikkim. Explore the monastery complex and enjoy the panoramic views of the surrounding hills. Continue your journey to Namchi, a picturesque town known for its religious and cultural significance. Visit the Char Dham, a complex featuring replicas of four revered Hindu pilgrimage sites. Return to Gangtok in the evening and relax at your hotel.

Depending on your departure time, you may have some free time for last-minute shopping or sightseeing. Check out from your hotel and transfer to Bagdogra Airport or New Jalpaiguri Railway Station for your onward journey.