what happened to high speed ferries?

[saaby93]

Following on from the couple of hovercraft threads what happened to the high speed ferries?
Who can remember Mr T Wogan and co reporting on the ferries that could cross the Irish Sea in any weather but had to stay in port whenever the sea became a mill pond

Whats the best way of sea crossing today?

https://en.wikipedia.org/wiki/SeaCat



https://en.wikipedia.org/wiki/High-speed_Sea_Servi...