After 2 days of south westerly winds, we launched with a light north easterly starting to blow.  At least 20-25m visibility on the reefs, a moderate to strong S – N (reverse) current, water temperature 22 degrees C.  We had swell and surge at some points due to 2 days of south westerly winds.  At the end of 2 dives, the north easterly was pushing at moderate wind strength.