In 2020, Bill Gates excitedly spent $80 million buying the most exclusive berths on the French Riviera for his hydrogen-powered superyacht and support ship. He sold the $650 million vessel before even stepping foot on it and has now put the berths up for sale.

For years, one of the most ambitious projects in the superyacht industry extended far beyond a single vessel. It involved a purpose-built superyacht and her support yacht, custom marina infrastructure,…