Lewes station used to have a bay platform for trains heading towards Seaford and Eastbourne. This is no longer needed so it has been filled with pebbles to stop people falling down the gap.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>