It varies from policy to policy. Generally, there could be fees or penalties assiciated with cancelling an insurance policy, or not. Some policies have a "free look" period that you can cancel within with no penalties. Some policies have no, or partial refunds. You'd have to read your policy's coverage requirements to find out what, if anything, you'd get back.
GET UP TO A $1000 SHIPBOARD CREDIT AND AN EXCLUSIVE GIFT!
If you make your Disney Cruise Line reservation with Dreams Unlimited Travel you’ll receive these incredible shipboard credits to spend on your cruise!