A superyacht or megayacht is a large and luxurious pleasure vessel. There are no official or agreed upon definitions for such yachts, but these terms are regularly used to describe professionally crewed motor or sailing yachts, ranging from 40 metres (130 ft) to more than 180 metres (590 ft) in length, and sometimes include yachts as small as 24 metres (79 ft).
Azzam, at 180.6 metres (592.5 ft) the longest superyacht, as of 2020
A, at 142.8 metres (468.5 ft) the largest "sail-assisted" motor yacht, as of 2018
Jemima F. III (34 metres (111 ft)) was the largest motor yacht in 1908
The classic yacht Savarona (136 metres (446 ft)) (built 1931) was the 20th largest yacht, as of 2018
A yacht is a sailing or power vessel used for pleasure, cruising, or racing. There is no standard definition, though the term generally applies to vessels with a cabin intended for overnight use. To be termed a yacht, as opposed to a boat, such a pleasure vessel is likely to be at least 33 feet (10 m) in length and may have been judged to have good aesthetic qualities.
A 45-foot cruising yacht in 2010
The superyacht Azzam, the longest private yacht, as of 2018.
An 18th-century Dutch jacht
1893 America's Cup match between Vigilant and Valkyrie II
