The Best Can I Take A Pocket Knife On A Cruise Ship Ideas. Knives are no longer allowed,. Web if the cruiseline follows tsa regulations, you will not be able to carry the pocket knife on your person or in your carryon.
Scissors with blade length less than 4 inches are allowed.) Some say no weapons, including knives (but obviously, not every knife is a weapon). Web cruise lines won’t permit you to bring dive tanks onto the cruise ship, however the policy on diving knives may vary from cruise line to cruise line.
