Original sentence: This event takes place on the second weekend of September every year
Edited sentence: It is a two day festival where many attendees choose to camp there in their vans.Of course you don't need to have a van to attend.There are also fair rides and stalls where everything you would ever need for you van can be bought.This event takes place on the second weekend of September each year.You may just want to have a fun time and look at all the colourfully painted vans (even Scooby Doo replicas