What's the noun for yachtfuls? Here's the word you're looking for.
yacht
A slick and light ship for making pleasure trips or racing on water, having sails but often motor-powered. At times used as a residence offshore on a dock.
Any vessel used for private, noncommercial purposes.
“It's just, you know, you're taking a backwoods Maine drywaller and trying to turn him into a country-club yachter guy.”
“For the yachter, who likes nautical tourism, Welcome Sailor is the new free of charge service that allows to book in advance berths and services for their holidays at sea with immediate confirmation.”
“He said the format seemed promising, but he wondered about the breadth of the appeal of some of the winning ideas, like an ankle bracelet that sends distress signals for an overboard yachter.”
“The resorts, which range from campgrounds to luxury hotels, often welcome yachters, and several of them offer either moorings or marina accommodation, at a price.”
“The government has also eased permit procedures for international yachters in order to boost the country's marine tourism industry.”
“The opening up of Cuba's waters provides more travel opportunities for yachters, which leads to more business for yacht transport companies.”