The shipowner or the captain of a Polish commercial sea-going yacht, except for unmanned (bareboat) yachts, is obliged to have civil liability insurance and accident insurance covering all persons aboard the yacht.
The law does not specify the minimum guarantee amount. The minimum guarantee amount is specified in the upper limit of the insurer's liability. If the amount of damage exceeds the minimum guarantee amount, the difference will have to be paid by the entity that caused the damage.
PZU is one insurance provider that has policies for Polish registered sea-going yachts. Their coverage includes both Polish and European territories. PZU can be contacted here