Visit Tiger Hill to watch the sunrise and take a ride on the Darjeeling Himalayan Railway Toy Train.
Visit the largest monastery in Pelling, Pemayangtse Monastery and take a dip in the Khecheopalri Lake.
Explore the Rumtek Monastery, an excellent example of the Tibetan style of architecture, and visit the Gangtok Ropeway for a scenic view of the city.
Visit the Nathu La Pass and go on a yak ride, then explore the Enchey Monastery.
Take a day trip to the Phodong Monastery, one of the most important Kagyu monasteries in Sikkim, and hike to the Bakthang Waterfalls.
Explore the Do Drul Chorten Stupa and take a stroll through the famous M.G. Marg street, known for shops and restaurants.
Wrap up the trip with a scenic drive back to the Bagdogra Airport.
If you have more time, visit the Tsomgo Lake or the Changu Lake or take a trip to the Nathula Pass. If you have less time, skip the Pemayangtse Monastery and reduce your trip to 6 days.