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
Chilly under clear skies with cloud edging in by dawn.
Wall to wall sunshine with barely a cloud in sight.
A boat passenger has taken these rare close-up photos of a basking shark swimming in Tor Bay.