Most insurance companies offer a discount if your boat has a GPS tracker mounted. The GPS will require both that you buy a unit and that you keep a subscription.
There are several different suppliers on the market. Choose the one that fit your preference. A tip from us is that you choose a tracker that's not connected to the boat, which means that the tracker runs on an internal battery that you change every 2-4 years.
We do not offer GPS-trackers at Goldfish Boat.