We did a 3 tank dive today, all of them pretty far south since all the other divers were staying at a resort far south. We did our surface interval between dives 2 and 3 at Playa Palancar and I noticed that the wind from the south was REALLY picking up. When we surfaced from our 3rd dive, our captain told us that a boat had sunk very nearby about 30 minutes into our dive. We went past it on our way back and it was eerie seeing tanks floating in the water....someone's DAN card, water bottles and waterlogged bags of chips... We tried to at least grab and remove the floating garbage. I THINK all the divers were safe; that's a crappy thing to happen to anyone and especially to deal with the aftermath.