Insurance remorse

Aviation does have some inherent risk, in a similar manner, so does riding in an automobile. Most of you are familiar with various forms of insurance coverage, but one that might be new to you is the concept of territorial limitations on aircraft coverage.

https://www.youtube.com/watch?v=-z2o0acIlm4

Suppose you have a plane rental business. When renting your twin-engine plane to a pilot (with a group of 3 others dressed in beach attire). You tell the renter about he cannot take the plane to the Bahamas.The renter takes-off after loading brick-sized rectangular plastic-wrapped bundles into the plane. He flies from Athens, Ga to the Bahamas where he lands long and runs off the end of the runway into the water. Your insurance company declines to pay you for the damages, citing territorial limitations. What might be your possible causes of action against the parties to get restitution for your loss?