In much of the western world, the summer period is associated with a long festival season that starts in May and continues through into September. These days, there are some huge festivals, like Glastonbury, Lollapalooza and Austin City Limits, that people attend in great numbers. Given that camping is usual at many festival events, the summer is the best time to hold them. Film festivals and venue-based ones tend to take place at other times of the year because they can be run indoors.