what are the rules for boating/sailing around the world?

lets say i bought a boat or a small yacht. anything were i can go aound the world or even island hopping. are there any special permits to get. what are the international sea rules or laws I would need to know before thriyng it. has anybody done something like this or similar?

More Sailing Yacht Information

• Sea Fishing Tackle Review: Penn International Torque Multiplier Reel TRQ300