A monohull is a type of watercraft, specifically a yacht, that is designed with a single, continuous hull structure, in distinction to multihull vessels such as catamarans or trimarans, which have multiple hulls or pontoons. The singular hull of a monohull yacht encapsulates the main body of the vessel, offering buoyancy and stability. It's streamlined design not only allows it to cut through water more effectively but it also provides ample storage and living spaces internally. In terms of navigation, monohull yachts generally have a deeper draft, which enables them to sail smoothly in heavy sea conditions, stay upright without tipping due to the keel-weight and inertia of the hull, and provides them with the capacity to tilt, or 'heel', under wind pressure which can improve speed. This design has been used for centuries in shipbuilding, marking traditional sailing configurations.

1. The Laser Standard sailing yacht is a perfect example of a monohull yacht, with its sleek, single-hulled design allowing for fast and agile sailing. 2. The Swan 65 is another popular monohull yacht. Built for racing and cruising, it features a deep v-shaped hull that offers stability and speeds across water. 3. The Jeanneau Sun Odyssey 490 is a top-notch monohull sailing yacht that provides a balanced and steady ride, thanks to its single hull design. 4. The Oyster 565 is a high-end monohull yacht, known for its durability and comfort while cruising in open water. Its strong single hull is designed to withstand rough sea conditions. 5. Lastly, the Beneteau Oceanis 46.1 is a much-loved monohull yacht, perfect for families looking for smooth sailing and stability that a single hull design can offer.

Monohull yachts are one of the oldest seafaring vessel designs in history, dating back several centuries. The unique characteristic of the monohull is its single, solid hull structure. Unlike their multihull or catamaran counterparts that have pontoons or multiple hulls, monohulls have a single, keeled design. This streamlined formation not only renders it a classic, elegant look, but also offers enhanced speed and navigation capabilities. Monohulls are known for their exceptional performance in challenging, rough waters and are renowned for their deep water cruising capabilities. Another fascinating aspect is their "heeling" property - the ability to tilt or lean into the wind while sailing. This very fact makes sailing them an adventure in itself as it adds a thrilling aspect to the craft - a feature that finds a special place in the hearts of sailing purists and thrill-seekers alike.