The Guardian, 1,300 music fans visited Amsterdam’s largest venue, the Ziggo Dome, over the weekend for four hours, dancing to DJ sets from Sam Feldt, Lady Bee and Sunnery James & Ryan Marciano.Participants were separated into five ‘bubbles’ of 250 and one bubble of 50, with each grouping subject to varying restrictions.
For instance, one group of punters were required to wear masks the entire time with a density limit of three people per square metre, while another group wore no masks and were allowed to sit or stand wherever they chose.Additionally, one group of participants were given fluorescent drinks and encouraged to sing and scream as loudly as possible to examine much saliva was released.Punters were required to take a COVID-19 test.