For the morning, visit the Solang Valley and try paragliding or zorbing. In the afternoon, go to the Rohtang Pass and indulge in trekking or skiing. In the evening, stop by the Mall Road and explore the local shops and restaurants.
Start your day with a trek to Kheerganga through the Parvati Valley. In the afternoon, visit the Tosh Village and relax by the waterfall. In the evening, head to Manikaran Sahib Gurudwara and enjoy the natural hot water springs.
In the morning, go for paragliding in Bir-Billing, one of the world's best sites for paragliding. In the afternoon, visit the Sherab Ling Monastery and explore the Tibetan culture. In the evening, enjoy the sunset at the Deer Park Institute.
Start your day by visiting the Namgyal Monastery and learning about the Tibetan Buddhism culture. In the afternoon, go for a trek to Triund Hill and enjoy the panoramic view of the Himalayas. In the evening, explore the McLeod Ganj market and try local food.
You can also consider visiting the Beas Kund, Jogini Waterfall, and Chamera Lake. You can take a side trip to the Spiti Valley or Kinnaur. To maximize your fun, you can try river rafting in Kullu and mountain biking in Shimla. Don't forget to try Himachali dham, a traditional cuisine of Himachal Pradesh.