One of the things many people love about the ocean is the waves. People love to play in the waves, surf the waves, and listen to the sound of the waves crashing on the beach. The world’s oceans contain enough water to fill a cube with edges over 1000 kilometres (621 miles) in length.
Did you know?
About 70% of the oxygen we breathe is produced by the oceans. Some marine animals often take advantage of currents to migrate several miles to and from breeding areas.