My wife and I are doing our first boat dive off the NC coast this weekend, if the weather agrees. We are both getting back into diving after an extended hiatus (18 years for me, 12 for her). We've taken a refresher and the AOW course and will be going with our instructor tis weekend. Other than pre-loading our systems with Dramamine and exchanging our gear bags for mesh duffels, what other considerations do I need to think about?