Surfing is a surface water sport in which an individual, a surfer (or
two in tandem surfing), uses a board to ride on the forward section, or
face, of a moving wave of water, which usually carries the surfer
towards the shore. Waves suitable for surfing are primarily found on
ocean shores, but can also be found in standing waves in the open ocean,
in lakes, in rivers in the form of a tidal bore, or in wave pools. Read more on
Wikipedia.