Violent seas can heave boulders across its surface, demolishing structures.

The sea splashed and heaved beneath the public docks.

The sea was heaving and thrashing on my right.

In the dismal yellow-gray daylight the sea was heaving and bubbling like black mud.

The sea heaved, exposing or distorting three legs that shimmered into the depths.

The sea heaved into deep waves, setting the longboat a-dance.

The sea heaved and slammed the door behind them.

The sea heaved up and down beneath her.

The sea heaved; waves swelled and toppled over us.

The sea heaved slow and supple, as if constricted under a film of silk.