Start your day by visiting the famous Shimla Ridge which offers a panoramic view of the surrounding hills. It is a perfect place to relax and enjoy the scenic beauty of Shimla. You can also visit the nearby Christ Church and take a stroll on the Mall Road.
Next, head to Solang Valley in Manali, which offers a breathtaking view of the snow-capped mountains. You can enjoy various adventure activities like skiing, paragliding, and zorbing. Nature lovers can take a walk through the picturesque valley and enjoy the serene surroundings.
After spending a few hours in Solang Valley, drive down to Kasol and visit the Manikaran Gurudwara, which is a famous pilgrimage site for Sikhs and Hindus. The gurudwara has hot springs where you can take a dip and seek blessings.
Finish your day trip by visiting the scenic Tosh Village, which is known for its natural beauty and panoramic view of the Himalayas. You can take a stroll around the village and explore the local culture and traditions.
If you have more time, you can also visit the Hadimba Devi Temple in Manali, which is a famous Hindu temple dedicated to Goddess Hadimba. You can also take a side trip to Kheer Ganga, which is a popular trekking destination near Kasol. To maximize your fun, make sure to carry warm clothes and comfortable shoes as the temperature can drop below freezing point in December. Also, don't forget to try the local cuisine and shop for souvenirs.