Blokarting and other sports will now be restricted to special zones
Extreme sports free zones have been introduced on a Cornish beach to protect sunbathers and swimmers.
The temporary measures have been implemented on Gwithian Beach in west Cornwall.
Between 1000 BST and 1800 BST sports such as kiteboarding and blokarting (go-karting with a sail) will be banned on the busiest part of the beach.
The National Trust, which owns the beach, hopes the zones will improve safety.
Some extreme sports enthusiasts have said the measures are too harsh.
However, the trust claims that even during the day two thirds of the beach will still be available for extreme sports.
The temporary restrictions will be lifted on 7 September.