1/7 Over 3 days, around three-quarters of a million people will flock to Bristol to watch some of the most amazing hot air balloons from around the world
2/7 Newsround's Lizzie went to check it out - but she's terrified of heights so was pleased the weather kept the balloons on the ground!
3/7 The festival organisers hope the balloons will be allowed to fly freely on Saturday and Sunday
4/7 This stuntman pilot kept the crowds amused by swinging from his ankles beneath the hot air balloons
5/7 On Friday evening there will be a free concert - with massive names like Busted and Triple Eight performing
6/7 Let's hope the bands don't overheat on the stage - it's set to be a warm, dry evening, perfect for an outdoor gig!
7/7 Big Brovaz will also be performing on stage - is that a new band member?!