An alternate is usually to drive towards the Kaghan Valley which can be a six -hour push from Islamabad and can be carried out inside a weekend (e.g. leaving Friday lunchtime and overnighting in Abbottabad) - but better to approach three or maybe more nights if you can. Watch out https://directoryfrenzy.com/listings12781782/a-secret-weapon-for-spoken-english-course-in-rawalpindi