i was there last week and went into the crammed outdoor shop for some info. there is a guidebook that cover rock ice and mixed around qtown but we couldnt buy i because there hasnt been a print run for few years. I wasnt even allowed to photocopy a few pages so had to wirte some notes down which was a bit shit. Apart from that the guy was quite helpful and climbs a bit too so if you are expereinced and have some gear you might be able to tag along. otherwise im sure he can recommend a guide company. its the store just next to the bakery on shotover st close to gorge road roundabout. you'll know when you find the shop because its cramed full of stuff.