Transporting any vehicle brings its own can of worries. A car has its own problems and so has the motorbike and so has the boat. But the basic principle remains the same. The principle is of , international auto export is safety, security, and making your vehicle voyage ready. The broad overview is where the similarities are namely draining the fluids, check for damages that are already there, and complete the documentation. Preparing the boat is not carriers responsibility. Its yours. This makes it very important to make sure that all your specs for boat export are already informed to the transporter and you do your homework properly to avoid any losses.

But thats where the similarities end. Preparing a boat is completely different from preparing a car. The following points will give you the answer to how to prepare your boat for voyage.
Measuring the boat: You have to measure the height, width and length to the exact measurements because thats how the space is allocated for the transportation. The height has to be measured from the highest portion which isnt collapsible.
Power down: Unplug everything thats running on power in your boat, that includes the batteries and store the cables safely. Else batteries can run dead in the transit
Keep it light: Keep your vehicle as light as possible because a heavier vessel is a case of overcharged courier charges and the shipping carrier will have to spend more time and fuel.
Protect your vessel: Protect the outside of your yacht form soot, salt, etc. with shrink wrap. If your vessel is too large to cover completely, just stick to the most vulnerable areas such as teak and non-skid surfaces. Also cover all stainless steel and chrome fittings or apply an insulator wax to this exposed metal. If possible, remove and store the windshields.
Documentation: It is important to bring your own registry and keys. They need to be original. Customs clearing becomes a problem otherwise.
Clean it: Clean out your boat of all personal items and make sure all loose items are secured tightly in the boat and no loose items are there so mar your boat. That includes outer electronics, fishing gear, transmitters, all canvas, sails and masts, lights.
All these precautions have to be taken no matter how small the journey is. Especially when there are loose parts or doors in the vessel, chances are by that the end of journey. They will be broken or damaged by the wear and tear of travel.