Re: Visiting Pakistan in Dec 2013
I’ve been there but it was before 2005 earthquake. I’ve heard that the transportation infrastructure got pretty damaged.
You should check these links out.
Gilgit-Baltistan travel guide - Wikitravel
A Travel Guide to The Northern Areas of Pakistan – Stunningly Beautiful and Safe to Travel | Travel Video News
Beautiful Valleys in Northern Areas of Pakistan | Mojo Travel