Absolutely nothing beats the freedom of a great holiday with the gang - and no parents breathing down your neck. These are the ideal campsites for under 18s, where you'll have the space to chill in the grass with a bunch of mates and a chance to capture the perfect group selfie. And it's your holiday, your rules! Browse this selection of campsites that allow under 18s for the independence of a staycation without the grown ups.