A dog sit sin the shade of a rack of surfboards on the sand at San Onofre State Beach, near San Clemente, California, August 1961. (Photo by Allan Grant/Time & Life Pictures/Getty Images). The location of this image is CA United States. Copyright: Time & Life Pictures

A surfboard is an elongated platform used in the sport of surfing . Surfboards are relatively light, but are strong enough to support an individual standing on them while riding a breaking wave . They were invented in Hawaii , where they were known as papa he‘e nalu in the Hawaiian language ; they were usually made of wood from local trees, such as koa , and were often over 15 feet (5 m) in length and extremely heavy. Major advances over the years include the addition of one or more fins on the bottom rear of the board to improve directional stability , and numerous improvements in materials and shape.
Modern surfboards are made of polyurethane or polystyrene foam covered with layers of fiberglass , cloth and polyester or epoxy resin . The result is a light and strong surfboard that is buoyant and manoeuverable. Recent developments in surfboard technology have included the use of carbon fibre. Longboards, as the name suggests, are longer (often 8 ft/2.4 m or more), and are also thicker and wider, with a more rounded nose than a shortboard, making them stable and buoyant. Shortboards are shorter (5–7 ft/1.5–2.1 m), thinner, and have a more pointed nose. They are not as wide as longboards and are typically more manoeuverable. Other variants include guns, longboard guns, olos, fun-boards, fish, eggs, bonzers, quads, tow-boards, and hydrofoils.

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