BAROT VALLEY -
You can get a bus from Delhi to Bir directly(private buses are much cheaper in compared to government buses).
From bir you can get buses or a cab to Barot valley known as gateway to heaven. The valley is known for its beautiful sceneries, lake and temples. The road to Barot valley goes through forest of pines and devdars. Route-Bir-joginder nagar-ghatasani-tikkan-barot.
For non veg lovers it's a feast as u can have best mutton and Trout fish available in whole Himachal.
For vegetarians you can have Rajmah and various vegetables which are grown in this valley only.
Lot of river side campings and hotel are available at very cheaper rates. Bonfires and other adventure activities are also available here.