The winds were howling for Act 5 of the Extreme Sailing Series in Cardiff Bay, where the series returned to the Welsh capital for some high speed sailing action.
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Cardiff Bay plays host to some of the world's best sailors as the Extreme Sailing Series returns to the Welsh capital for a third consecutive year.
Olympic gold medallist and America's Cup winner Sir Ben Ainslie is amongst those competing over the bank holiday.
The event, which is part of the Cardiff Harbour Festival and will feature a fleet of 40 catamaran, is the UK leg of the competition.
Other legs include St Petersburg, Singapore and Sydney.
Sir Ben, who skippers the British entry J.P.Morgan BAR, said: "It is crazy racing.
"Anyone who has seen the series - or taken part in it - will tell you that the style of the courses, the speed of the boats and the number of boats on any side of the course at one time, means there is a lot of action and a lot of potential for crashes and incidents.
"So it makes for exciting racing and you really have to be on your toes."