Running trail sign, Crawfordsburn Glen There are several of these signs, at appropriate places, showing which parts are suitable for running.
<a rel="nofollow" class="external text" href="https://www.geograph.org.uk/profile/5835">Albert Bridge</a>
CC BY-SA 2.0
From <a rel="nofollow" class="external text" href="https://www.geograph.org.uk/photo/1502081">geograph.org.uk</a>