Start your day with a visit to the Darjeeling Himalayan Railway, also known as the Toy Train. It's a UNESCO World Heritage Site and one of the most popular attractions in the city. Take a ride on the train and enjoy the scenic beauty of Darjeeling and its surroundings. After a morning ride, stop by the Railway Museum to learn about the history of the railway. In the afternoon, visit the Happy Valley Tea Estate for a tour of the tea factory and a taste of their famous tea. In the evening, head to the Chowrasta Mall for some shopping or a stroll.
Get up early and head to Tiger Hill to watch the sunrise over the Himalayas. It's one of the most breathtaking experiences in Darjeeling. After the sunrise, visit the Peace Pagoda, a Buddhist shrine that offers a panoramic view of the city and the surrounding hills. Take a leisurely walk around the pagoda and enjoy the peaceful atmosphere. In the afternoon, visit the Himalayan Mountaineering Institute to learn about the history of mountaineering and see the equipment used by famous mountaineers. End your day with a visit to the Padmaja Naidu Himalayan Zoological Park, home to rare and endangered species such as the snow leopard, red panda, and Himalayan wolf.
If you have more time in Darjeeling, consider visiting the Observatory Hill, Mahakal Temple, and St. Andrew's Church. You can also take a side trip to Kalimpong, a small hill station located about an hour away from Darjeeling. It's known for its colonial architecture, Buddhist monasteries, and flower nurseries. To maximize your fun, try some local food such as momos, thukpa, and churpee. Don't forget to bring warm clothes as the weather can get chilly in the evening. Finally, make sure to book your accommodation and transportation in advance. Check out https://trip.tp.st/5u0O2Vxp for the best deals.