A report by the National Farmer's Union Cymru says that 'fly-grazing', where horses are left to graze on private land without permission, is a serious problem in Wales and that it's getting worse.
More top news
Helen Plint's weather forecast for Wales
A group of ex-servicemen have become the first people to climb Pen y Fan in the Brecon Beacons for 24 hours non-stop.
Thousands of athletes are in Tenby for the competition which consists of a two mile swim, a 112 mile cycle ride and a marathon.