Deemed 'The world's largest music & philosophy festival', HowTheLightGetsIn is a weekend-long event that takes place by the river in Hay-on-Wye.

In 2025, the event will feature more than 350 performers across 300 mind-dashing events.

Their website also features more than 3,000 videos from past years.

Our very own Andrew Marston had a tour of the festival site with founder Hilary Lawson.