I don't yet have access to the instructor forum on this board, so I thought I would give this a go here. I am in the process of certifying my son in law as an OW diver. We are going to Cozumel in April and staying at the Occidental Grand. My thought was that I would conduct his OW dives in Cozumel. Have any of you instructors done this? Any advice or suggestions would be appreciated..