No commercial ferry makes the 11-hour journey from the Venezuelan mainland.
The commercial ferries, numbering in the dozens, are relatively easy to monitor, officials say.
Booth also owned and operated a commercial ferry here from about 1800, thus the area's second popular designation - Booth's Ferry.
It is not a serious threat to the aluminum hulls of commercial ferries, he said, but it could damage their propellers.
The first commercial ferry at Ste. Genevieve was established about 1800.
No commercial ferries go to the island.
The technology is applicable to all types of marine vessels, including commercial ferries, large ships, and recreational vessels.
The section from Helsinki to Tallinn will be operated by existing commercial ferries.
Most commercial ferries arrive at a new port of Athinios further along the coast.
Last year, commercial ferries docked there, leaving the historic ships on the less noticeable north side of the pier.