The term 'Billionaires' Boats' refers to the luxurious yachts owned by billionaires. Yachts are large, expensive boats that are often used for recreational purposes such as sailing and cruising. They are usually equipped with amenities such as swimming pools, hot tubs, and multiple decks. Billionaires' yachts are typically much larger than the average yacht and are often custom-built with the latest technology and features. They are a symbol of wealth and luxury, and are often seen in the world's most exclusive ports.