There are aid stations at regular intervals (approximately every 10-12km) on these trail races: 10km, 25km, 52km, Ultra-Trail Gower Peninsula® (approx 52km), and Multi-day Ultra Marathon (approx 77km). There is no aid station on the 5km trail race.
For details on aid stations, check out the Trail Race pages: https://www.lovetrailsfestival.co.uk/explore-running?