Permanent courses use control markers that remain in place permanently (e.g. wooden posts), rather than the temporary controls used in events which are only in place while the event is taking place. This means you can use the courses even if there is no organised event on at the time. The normal public opening hours and parking charges still apply for the parks.
The following parks have permanent O courses. Maps are available from the visitor centres.
(Note these are EXTERNAL websites not controlled by OD)