My wife and I turned up one morning in 2019 at HdeO not aware of the event and were confronted with a town of people dressing up in mediaeval costumes. We were really chuffed that luck had landed us there on the day. However, we couldn't find accomodation and our Spanish couldn't cope with conversations. Feeling exasperated and wondering what's next, two people approached us, the lady speaking in an American accent. She was a local, having met a Spanish guy whilst walking the Camino and decided to stay in Spain. She had recognised our looks of desperation and offered to speak to some local hotels about accomodation for us. She got a place for us, walked us by their home, pointed the way and her husband got a little carved wooden shell for us from their home as a gift. The jousting, colour, huge pennants, costumes, blasts of long trumpets and the market stalls all brought an otherworld feeling. Its worth seeing and worth booking ahead too.