Groups of 6 generally did a dive with a dive guide for around an hour. The water was warm, around 27C so the 3mm neoprene was plenty for us who are used to temps more like 20C!
@shutterbug49 Oh yes big time Debbie! We were married ten years before we had the children, every holiday was a diving one. Living in Japan we were close to all the famous spots in Asia and Micronesia ;-)
@ludwigsdiana we hope to keep doing these trips for a while yet :)