Ben Tubby and partner Kerry had problems on a trek to Snow Lake guided by Vertical Explorers Expeditions.
Ben’s detailed photo trip report is recommended reading for anyone — like me — considering an adventure in Pakistan.
Bad roads, cold rooms, disgusting toilets, illness, crevasses, rain, sunburn, freezing river crossings, communication problems with guides, …
Sounds like fun!
Northern Pakistan is beautiful. Amazing mountain scenery, honest, friendly people and lots and lots of ice. We spent 18 days wandering up the biggest slab of ice outside of the polar regions and then got lost in a white-out on the top, surrounded by crevasses.
(trip report)
Snow Lake Hispar La Experience – Vertical Explorers (a longer tour than Ben’s)
(via Nothing adds up)
Biafo Glacier
Ogre’s Thumb
besthike.com 
I did the same trek with Vertical Explorers in 2005, and found it to be real adventure. I higly recommend them for any trek in pakistan based on my 6 years long experience in Pakistan with them! True professionals