Britain's Glastonbury Festival is greener and cleaner after banning the sale of single-use plastic bottles in the hope of inspiring long-term change - even in the middle of a heatwave that forced some music fans to queue for water.
Ticket holders were encouraged to bring their own reusable bottles or to buy a metal canister, which could be refilled at water stations around the site.
Long queues formed at some locations as people tried to keep hydrated in blazing sunshine at Worthy Farm in southwest England on Friday and on Saturday, as the temperature hit 25 Celsius.
But most festival-goers remained good natured and said they supported using less plastic. About 1 million single-use plastic bottles were sold on site in 2017, organisers had said.
Glastonbury has an on-site recycling facility, which for eight days processes the waste created by up to 200,000 people, making it Europe's largest temporary recycling centre.
In 2017, it processed 132,500 kg of food, which became compost; over 44,500 kg of cans, which were used to make new cans; and over 44,000kg of plastic bottles, which were used to make materials such as fleece and carpets, the festival said.
Recycling centre manager Andy Willcott said the impact of the plastic bottle ban had been much greater than expected.
The volume of plastic and cans sent for recycling were previously about equals, but this year it was four loads of cans to one of plastics.
"There has been a little bit of a shift to cans, but not enough to compensate for the (drop in) plastic," he said.
It's another hot one! A reminder that ALL of the 800+ taps on site provide free drinking water, and most don't have queues. Plus, bars offer free water and food traders have canned water & soft drinks available to purchase. pic.twitter.com/YFehMfnWFv— Glastonbury Festival (@GlastoFest) June 29, 2019
As Glastonbury can control what traders sell and ask ticket holders not to bring items like glass, the quality of the material recycled is high, he added. Only around 1% of everything that comes into the centre cannot be recycled at all.
Four teams of 100 volunteers sort the waste, and all receive a sought-after festival ticket in return.
The biggest category collected on site was unsurprisingly beer and cider cans, Willcott said, but it can also cope with a host of other items including ampoules of nitrous oxide or laughing gas.
Up to 10 bins of the small silver flasks had been recycled since Thursday, although the trend for inhaling the gas appeared to have peaked as collections were down this year.
Willcott said Glastonbury's cultural status meant it could help change behaviour long after it ends on Monday.
"What we would like to see is change... We have to get to the point where people are reusing, and recycling isn't an issue any more."