This made violent plunging in a rough sea.
The enclosed area is flagged with stone, and in the centre is a tank, or pool, of water, in which the bear makes occasional plungings.
The reckless plunging ceased so far as it was against him.
Above the steady plunging of their own horse-hoofs they could hear the quicker irregular beat of other hoofs in the darkness before them.
West, bracing himself to the sudden plunging, managed to reach the rail.