Reef breaks are a type of surf break that occur when ocean waves break over a coral reef or rocky seabed. These breaks can create powerful and often hollow waves, making them popular among surfers. The shape and depth of the reef influence the wave's characteristics, such as its speed and size. Surfers often seek out reef breaks for their consistent and challenging conditions. However, these locations can also pose risks due to sharp coral and strong currents. Famous reef breaks include Teahupo'o in Tahiti and Pipeline in Hawaii, known for their impressive waves and surfing competitions.