There are definitely a few side trips that you can take in a day and then get back to Manali (in case that is your base camp). Depending on your available time, we would recommend a following order:
Solang Valley – Jagatsukh - Naggar
This trip takes you the enchanting Solang valley with excellent views, ski slopes and
Manikaran
This includes a visit to Vaishno Devi, a cave temple in which is enshrined an image of the goddess. This trip takes you through the town of Kullu, which is famous for its shawls and Dussehera Festival.
After Kullu, you will pass through the Parvati Valley on your way to Manikaran. The scenery in Parvati valley is on a wilder side and much more impressive than that of Beas Valley. The trip passes thru various little towns, if you have you own ride you can stop at various points upto Manikaran.
This trip can easily be done in one day. However if you feel like spending more time at any one place, we would suggest you hire your own car rather than taking any state run buses for this trip.
If you are looking to make an overnight stop, Kullu (for normal Himachal town sight –seeing) or Kasol (more for good views and Backpacker scene) are good options.
Rohtang Pass
This is a definite side tip to under take depending on the time of your visit. The roads to Rohtang pass are open and safe for travel only from May-mid September.There are other forward journeys that can be undertaken for further into Leh and Ladakh. Create your budget tour for India travel.
