Well you basically pray for the best you have a hell of a lightning rod sticking out of the boat as well as the antennas . My dad's boat was hit by lightning in the 80's while it was moored at the yacht club. No damage to electronics, the little zinc fishes disappeared and 2 spreader lights went bad. But basically we stay away of all the metal (Helm, fittings, etc. as kids we were sent to my parents cabin which was farthest away from the mast