Himachal is a big state with full of travel destinations. If you have a personal vehicle and enough confidence to ride or drive in the mountains, then there is nothing better than road trip. It gives you ample opportunity to get lost in the beauty of nature without any distractions. You can plan to cover full Himachal in this way:
Start from Chandigarh or Delhi and take the Shimla route. 1) In this route you can cover Nauradhar and trek to Churdhar.
2) From Churdhar you can go directly to Shimla. Explore Shimla, trek to Jakhu temple.
3) From Shimla you can go to Rohru and Kharapatthar. Trek to Kupper Bugyal and Giriganga. Return back to Shimla.
4) From Shimla you can go to Chail, explore Chail palace and Stadium and come back to Shimla.
5) From Shimla you can go to Kufri, explore it and go to Narkanda. You can hike to the Hatu peak.
6) From Narkanda you can go to Rampur. Here you can explore Baga Sarahan. There is a very beautiful waterfall with a cave behind it. Here you can also trek to famous Shrikhand Mahadev, one of the five Kailash.
7) From Rampur you can take a detour towards Jalori pass and explore Serolsar lake, Chaini village, Tirthan valley and Banjar valley. 8) From Rampur you can go to Recong peo and explore full Kinnaur valley. You can explore Chitkul, Kalpa, Sangla to name a few. You can also trek to famous Kinner Kailash, which is also one of the five Kailash.
9) From Recong peo you can go to Kaza and visit Gue, Dhankar, Tabo, Ropa on the way.
10) From Kaza you can explore Kaza, Langza, Hikkim, Chicham, Ki, Kibber, Tashigang etc.
11) From Kaza you can go to Chandratal lake and cross Kunzum pass to reach Gramphu.
12) From Gramphu you can go towards Leh and explore Keylong, Jispa, Sarchu and come back, as beyond Sarchu is in Kashmir.
13) From Gramphu you can go explore the Lahaul valley, Pangi valley and can cross the Sach pass to reach Chamba.
14) From Chamba you can explore Khajjiar, mini Switzerland of India.
15) From Chamba you can go to Dharamshala and explore Dharamshala, Mcleodganj, BhagsuNag fall, Shiva cafe, Jwala Devi temple, Bogla Devi temple, Palampur, Baijnath temple.
16) From Dharamshala you can go to Manali.
17) In Manali you can explore Mall Road, Nature park, Vashisth temple, Manu temple, Hidimba temple.
18) From Manali you can go to explore Rohtang pass, Solang valley and back to Manali.
19) From Manali you can trek to Jogni fall and explore the apple orchards.
20) From Manali you can trek to Beas Kund, source of Beas river.
21) From Manali you can also trek to Hampta pass.
22) From Manali you can go to Kasol and explore Kasol, Katagla.
23) From Kasol you can trek through Sar pass to reach Barshaini. 24) From Barshaini you can trek famous Pin Parvati pass to reach Kaza in Spiti again.
25) From Barshaini you can go to Tosh, Malana and explore their unique culture. From Malana you can also trek Chandrakhni pass to reach Manali again.
26) From Barshaini visit Manikaran and go to Mandi.
27) From Mandi you can visit Parashar lake, Rewalsar lake.
28) From Mandi you can go to Una and Nangal via Sundarnagar and back to Chandigarh/Delhi. This way you can cover most part of Himachal Pradesh.