Often some insurance boat policies are at agreed on value policies and not ACV policies. If they are based on agreed on value, and you want to save some money on premiums, Make sure to keep the value listed up to date as the Value decreases. I know people who listed their value of their boat as 60,000 ten years ago and the boat are not near worth that value today. If they don’t call the insurance company / Agent to adjust the value they will be paying higher premiums based on the original value given at the time the policy was issued. This is only the case if the boat is on agreed value.
Another way to often decrease the premium is to look at higher deductibles. See far to many people with 60,000-100,000 boats or pontoons that have a 100.00-250.00 deductible. I’d think if you can afford a boat of that value you could afford a higher deductible.