About seven years, I believe. My then-wife and I did the OW course in 1998 because we were planning to vacation in Australia with some friends, and damn if I was going to visit Oz without seeing the Great Barrier Reef. After that, the demands of career, family and finances limited my diving to taking a couple of weekend-long trips a year, or to sneaking in a dive or two during a land-based vacation. So for the next several years I got in maybe 8-10 dives per year. Eventually, following a divorce and general reconfiguring of my life, I took a year off from the rat race and traveled around Central America, with a focus on diving in Honduras, Belize and Mexico. That really reignited my interest in diving. Last year I married a wonderful woman who loves diving, and it was practically part of our wedding vows to take at least one week-long dive trip per year. We just got back from Indonesia, where we dove four times a day for five days.