There is no standard definition of what makes a boat a yacht, but most boaters consider a yacht to be any type of sea vessel that is used strictly for recreational or pleasure purposes like cruising, entertaining, water sports, fishing, or year-round accommodations. However, size is the primary factor in determining if a boat can be considered a yacht. While there is no official point at which a boat becomes a yacht, anything over 40-feet in overall length could conceivably be considered a yacht. In addition, as you move bigger in size, you will probably get into “mega-yacht” or “superyacht” territory. Luxury is another defining feature to consider. A boat is much more likely to be a yacht if it is large in size and has many luxury amenities and entertainment features. Yachts are usually large enough to have some form of sleeping quarters (cabin) on board for overnight trips as well as a kitchen (galley) and a bathroom (head) . They are also large enough that they require more than human inputs (i.e rowing) to propel forward. Yachts are classed by many things, including their mode of propulsion, size, style, amenities, and function.