Surf powerboat racers from all over the country are at Watergate Bay this weekend for the Thundercat National Championships.
Powered by 50 horse-power outboard engines, the four-metre-long inflatable catamarans can reach speeds of up to 60 mph.
It's the second time the national event has been held in Cornwall.
More top news
Two men have been arrested after jewellery worth an estimated £1 million was stolen from a jewellers in Bristol during a daylight raid.
Bob has the forecast for Devon, Cornwall, Somerset and Dorset.
Bob has the latest forecast for Bristol, Wiltshire, Gloucestershire, Somerset and Dorset