If you have your own boat or have somewhere you can leave it to avoid having to travel with it, then if you would like to have this option open to you I would say yes. But if you are planning to travel down with it each time, I would say no. All dive tanks regardless of how small they are have to be open, ie the valve removed to be able to travel on a plane, also even though they are smaller, they will still take up a far bit of your baggage allowance.