Our experience at Wolf and Darwin was that the dive masters would try to get you settled in at a "cleaning station" and then you would be holding on to a rock in current waiting for something exciting to swim by. You don't have to settle on your knees to watch, but depending on the current you do get pushed around quite a bit if you don't wedge yourself in. If you are a photographer holding on with one hand and trying to take shots in the current is an effort. Most of our group found that hiding behind a rock with your fins helping to keep us in place was the best approach. You can pop up at the last second and get your shot as things swim over you. A couple of notes: using your flash when the fish is 20 feet away makes the fish turn and become 60 feet away. Also when wedging yourself in take a good look for what is under the rock. There are LOTS of very active green morays and stepping on one is not good for them or you. In early July the coldest dive we did was 72 degrees. I was more than comfortable in a 7mm and would have preferred a 5mm. Only wore my hood once. I also wore out the finger tips in a pair of 5mm gloves just from hanging on or having to rock hop in the current when we decided to move to alternate cleaning station.