Foals and Hot Chip both top the bill, which also sees sets from Lonelady, Tom Vek, Loyle Carner, Blaenavon, and many more.

To find out more about the festival, or to buy day tickets for the Friday, head to By The Sea's website.

To be in with a chance of winning, all you need to do is answer the simple question below. Winners will be chosen at midday on Thursday 12 November and notified by email.