For those of you who would like to do some sailing while you are diving, have a look at this web site.
http://amihanvoyager.jimdo.com/

My American friend Mel Levine charters his sail boat for about $440 per day, all up. Rental gear and courses are extra. For a small group of people (3 to 6) that is pretty cheap diving and accommodations per day in one of the best wreck diving (Coron) and reef diving (Apo Reef) areas in the Philippines.