I did it on my last dive trip, several dives. It was usually right underneath the boat and my buddy was close by doing almost the same thing. It is truly amazing when after 2 or 3 minutes the tube worms and all the actors seem to show up out of nowhere. The divemaster made the comment that they knew where to find me. I On one dive the group went on their tour of the reef and my buddy and I stayed behind. After the dive a couple of the other divevers from the group asked "what happened to you"? that is when the dive master said they knew where to find me.