As rjalexie points out, this is what Carnival's FAQ states in part:
Are There Restrictions on What We Can Bring Aboard?
Due to "Safety Concerns", the following items cannot be utilized on board but may be brought on board for use in port, only:
Roller Blades/Skates
Snorkel Gear
Skateboards
Golf Clubs
Fishing Rods (packed)
Tennis Rackets
Kites (packed)
I have also read (cann't remember exactly were) but heelies (?), the sneakers that have skates built in, are also not allowed. However I have seen some kids using them while on board.
The thing to remember is these restrictions are not intended to be "mean" or "restrict your fun or enjoyment" but are in place for your safety as well as the safety of other passengers.
You may also want to consider what ports you are going to. There are some ports that would either look down on it or it may be entirely impractical to use them on. Also, another reason they may not allow skates and skateboards on board is maintainence reasons. The wheels would be very hard on the wooden decks. Think about how a wooden flybox would need repaired or replaced every so often and you get the idea there. Besides, there is plenty to do aboard that the ship provides, so don't worry about getting bored.
So based off the information from Carnival, a skateboard is allowed on board but cannot be used.
You can bring it on board to use at a port but I betcha if you walk around the ship with it in your hands someone is gonna stop you and either take it or make you put it in your cabin. As for ports... they are other countries and may not be to keen on skateboarders.
A lot of ports are too uneven to skate board on anyway. Very rough sidewalks and way too much traffic in the streets. Hubby brought a bicycle with him once to ride around on in ports. I about had a fit because it seriously reduced our floor space in the cabin!
But, almost anything with wheels would be very dangerous to use on a ship anyway. Why not leave it at home and try something new on your cruise. You won't be bored!
Marty
Thanks to everyones's input to the skateboard. Trust me when I say that I am too old and uncoordinated to use a skateboard. The reason why I asked is because we had a situation a couple weeks ago when we sailed on the Sensation. I was able to talk my sister and her family from NY to go on a cruise since she mentioned she wanted to do a family vacation. I have sailed Carnival may times with no issues. Well as we put our things through the metal detector at the Port a security guard started giving my Nephew a hard time because he had a skateboard strapped to his backpack. They took it away from him saying he could not take it on the ship. Since we had rented a shuttle bus to bring us down to the port we did not have a car to put the skateboard in. At that point the guard said she was going to throw it away which of course got my Nephew very upset. He said the whole thing was "bs" so at that point the guard decided to get the police involved as well. Eventually we ended up calling the shuttle bus back so we could put the skateboard in it until we got back. Of course it costs us extra $$$$$. My biggest beef with the whole thing was that according to CCL website. A skateboard is allowed on the ship as long as it is not used on the ship. The security folks made a big deal out of something that was not called for.
Yes, that can happen nowadays. At airports or cruise lines. The security people are not employed by the carriers and they enforce their own rules, rather than what you thought were going to apply.
Marty
I am going to have to get a dive knife through security, and I expect it to be confiscated so I will declare it and ask them to turn it over to the ship's chief security officer.
Brad I hope you planned to have that packed if you are going through an airport.
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Bob
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Alaska 2014 - haven't picked a cruise yet
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012
Celebrity: Summit 2011
Princess: Ruby 2010, Caribbean 2013
I have already checked into the regulations and will transfer it from my checked bags to my carry on once in port. I am more concerned about making sure the makeup for my costume doesn't get confiscated. The cost of the theatrical makeup far outweighs the cost of replacing a dive knife.