Ditto what others have said (K-Col is probably a good place to aim for). Suggest you avoid the tank water there though - there's a few stories in the log-book of people finding dead rats floating in the tank
Clemmes Tarn has been on my list for a camp too - but haven't actually tried it.
Should the weather be really nice, you'd probably even do alright out near Field West.
Yukky weather, I'd head down to Twilight Tarn for some more shelter.