The above information is good - I would also add the following to help get the best possible price.
- Don't buy insurance you don't need - i.e., be very specific about getting the insurance that is right for you boat. Most cariers have a dozen or so different kinds of boat insurance (powerboat, sailboat, houseboat, fishing boat, etc.). Make sure you're getting the one that is specific to your boat and its use.
- Just like having a home security system can lower your house insurance, some insurance companies will discount the premium if you have certain safety equipement - tell the agent about any safety equipment or gadgets you have installed - it could help.
- Take a boating class. Taking a boating class could save you as much as 5% with some companies. Check with the agent and see which classes may qualify and for how much - this kind of savings over a couple of years could be significant.
- If you are willing to have you boat out of the water for some of the year, some insurers will cut your premium for the period of time your boat is not being used.