After Cebu I board the bus alone. When I learnt diving in Australia, I remember the first thing mentioned in the knowledge video of the certification course was "scuba-divers are fun people". We all laughed because that was such a cheesy way to start the course. But this is so far so true.
Another general observation was that the "In order to protect marine life, do not touch anything" principle doesn't seem to be something that any of the divers I met in The Philippines had in mind. They touched the coral, the fish, the sea turtle, and everything else which they could lay their hands on.