…a ridge of jagged rock, coral, or sand just above or below the surface of the sea…
…each of the several strips across a sail which can be taken in or rolled up to reduce the area exposed to the wind…
…a type of double knot which is made symmetrically to hold securely and cast off easily…
…a ridge of rock in the sea formed by the growth and deposit of coral…
…a coral reef close and running parallel to the shore but separated from it by a channel of deep water…
…a coral reef in the western Pacific, off the coast of Queensland, Australia. It extends for about 2,000 km (1,250 miles), roughly parallel to the coast, and is the largest coral reef in the world…
…a preserve in south central Utah, noted for its fossils and rock formations…
…el Gran Arrecife Coralino, la Gran Barrera Coral…
