Agree with the others....one can sail a C34 off-shore, if one prepares the boat well (reinforced forward hatch, storm sail, etc., picks the weather windows correctly, and is definitely not in a hurry. Having said this and having a little experience, at least in the Gulf, the standard C34 does not have, in my opinion, sufficient tankage or for that matter good storage for prolonged times off-shore. But can you do it? Sure, just slowly with lots of stops.