Sorry, I have no photos and no map on hand, but I do remember my trip into Gardiner from 60 Lakes from a trip about 10 years ago.
Navigationally, it was *very* easy. It was easy to find the correct 60 Lakes Basin lake on the use trail, and then the col to Gardiner, situated right behind and to the west of that lake.
Technically, it was Class 2-3 with some sections that might be tricky for someone with a big pack. If you have a light pack you'll be just fine. I recall it was easy to pick out the route just by eyeballing from the lake; no need for special instructions.