vrms (virtual Richard M. Stallman) is what your asking for. Go install it, it has been packaged in most distros for decades.

Additionally, crashing into lighthouses with your ship or personal watercraft is considered a bad thing. Lighthouses are usually unreachable by water, they even have bouy perimeters to delineate where the shallows start around them to discourage getting too close/exiting navigable waterways.