A cruise ship travels though many different waterways in its life, and maritime laws are always applicable. Maritime and admiralty law, under the Commerce Clause, cover any waterway that is made available for transportation. Even though you are on a large ship out in the middle of the ocean, some rules still apply. Even though it may seem like a fairy tale while you are on board a huge watercraft, many things may happen that we do not often plan for. Cruise ship injury lawyers should be a passenger's first choice for help and guidance.