His head broke the surface.

A white yacht was sailing over the sea.

A big rock rose out of the sea.

I wonder if the sea level really will rise when the ice at the North Pole melts.

It's not hard to see what the results of this rise will be.

These special characteristics explain its preference for still-hunting (lying motionless beside a seal's breathing hole, waiting for one to surface).

Being active at night may relate to the behavior of seals, which feed at night on various fish that come up closer to the surface.

The sea level is rising.