Boat insurance is generally needed for anything with a motor. Pirogue’s, canoes, kayaks, etc. are normally covered under a homeowners or personal property insurance policy. Be sure to confirm exactly what items are covered as there can be variations in coverages offered. Personal liability, property damage & bodily injury should be the core components of your policy for a motorized boat.
Jet Skis and other PWC (personal watercraft) are not required to be insured but it is highly recommended due to the cost of potential claims that might arise with their use. Also, completing a boater safety course can potentially lower the cost of this coverage but first confirm the course qualifies with your carrier.