Surf's up!

[Hornblower]

Most extreme ‘rogue’ wave ever recorded off coast of Vancouver (msn.com)

[ombugge]

The Drapuner Wave referred to in the article occurred in the southern part of the Norwegian sector of the North Sea:

World’s highest waves form west of Norway

At 3 pm on 1 January 1995, the device recorded a rogue wave with a maximum [wave height of 25.6 metres (84 ft). Peak elevation above still water level was 18.5 metres (61 ft).
The reading was confirmed by the other sensors.
The platform sustained minor damage in the event.

In the area, the significant wave height was approximately 12 metres (39 ft), so the Draupner wave was more than twice as tall and steep as its neighbors, with characteristics that fell outside any known wave model. The wave caused enormous interest in the scientific community

PS> In the Northern part of the North Sea the air gap used for fixed installations are 33 m. above MSL.