Where exactly do you think your boat dock’s power runs to? Because it probably runs back to your home’s main breaker and isn’t separate service to the street.
Best thing you can run is conduit and yes fiber is the most correct wire for your distance to only do it once. But as far as lightning strikes go; a strike literally in your yard will probably cook half your home’s systems anyway.
Where exactly do you think your boat dock’s power runs to? Because it probably runs back to your home’s main breaker and isn’t separate service to the street.
Best thing you can run is conduit and yes fiber is the most correct wire for your distance to only do it once. But as far as lightning strikes go; a strike literally in your yard will probably cook half your home’s systems anyway.