HUNGARY Volt Festival has launched a campaign to make the event more environmentally-friendly.
Called GreenFestival, the scheme sees festival-goers given a GreenFestival bag when they get their FestiPay card, by giving a mandatory deposit of 500HUF.
The ones who gather and return their waste will not only get back the deposit, but also receive a certificate of merit and a T-shirt coupon worth 500HUF.
A spokesman said the aim of this campaign is to show the audience that they are the source of action when it comes to saving the environment.
The festival runs 2-6 July with acts including Arctic Monkeys, Hurts, Foals, MGMT, Netsky and more.