Geert started making pictures underwater in 2008 (Red Sea, Egypt) and from then on he always had his camera with him: Lembeh, Maldives, Bali, Sipadan, MoalBoal, Puerto Galera (on his flickr site you can also find his PG albums from 2013, 2012 and 2011 and see his progress!) It’s in PG that Ralph Ramirez urged him to switch from the “underwater” to the manual function and to making pictures in RAW format, then followed one external flash, next trip two external flashes, the following trip a macro lens and so on… he has been diving with Asia Divers for five years in a row now, for the “quality and good humor of all the people working in El Galleon and at the dive centre, for the fine operation with four regular dives a day and for the variety of macro life.”
Check out his PG pictures from last February on Flickr: https://www.flickr.com/photos/59735737@N04/sets/72157644060479093/