I don't understand whats the question in fact its not a question at all... are you looking for the term for the person or can you travel ... you have to be more clear...
We you hit the ground, you may lose your ship and continue to roll or bounce on as just a sheep.
stowaway
You can not be sixteen without a member ship. You have to pay for a membership to be sixteen. And you can not get a game card for it. You must pay with a credit card. :(
so people can travel through water without using thier energy
no
A person who hides on a ship to avoid paying a fare is called a stow away.
Fast enough to cause a big spolosion
That depends on what is powering the ship, and how fast the ship can travel under that power.
There are no ferries between Australia and New Zealand. However there are various cruise lines that operate. Another way is to travel by freighter, or cargo ship. These ships often have comfortable cabins for paying guests.
One can book a trip on a Celebrity cruise ship by visiting with their local travel agent. Cruises can also be booked directly through Celebrity Cruises without using the travel agent as a middleman.
By foot, animal and ship.
A stowaway