You don't want to put your family in danger, or yourself. So, think this through. Your boat would not be my choice for such a crossing. You have to consider the worst conditions and feel confident that your boat can handle it (not to mention you). There are a number of considerations for a long distance cruise: As already stated, enough capacity for water and fuel and provisions. A deep cockpit with a high bridge deck so water will not pour into your cabin if filled. Large enough scuppers to drain your cockpit quickly. Stout enough hatches, drop boards, and ports to withstand heavy seas. Boats that are classified as offshore "A" vessels have superior hull to deck joints and have gear on board designed to withstand severe conditions. Your trip could be a flat sea situation where you have to motor all the way across, but you have to be prepared for the other extreme. And, if your wife and child are on board, you have them to be responsible for. If you are doing this alone, then that is another thing, but you still leave your family behind without a father, husband, etc. This might sound a bit over the top (what I am writing), but sometimes the ocean is relentless and you should be prepared for it and be on a vessel that can handle it. Nuff said.
