The main trekking areas in Himachal are the Dhauladhar and Pir Panjal ranges easily accesible from Kullu valley. Several treks lead over from Kullu valley to Lahaul & Spiti, Zanskar, Kinnaur and Kangra. Most treks pass through rugged and unspoiled terrain, deep forests and beautiful streams. Many old temples lie along the way.
Season
April to middle of June, and mid-September to mid-October. The higher regions get cold in October. To access Lahaul valley trekkers have to wait until Rohtang Pass opens which is usually in June.
Safety
You should be physically fit and not suffer from epilepsy, heart disease or other serious ailments. Consult a doctor in case of doubts.