We were warned that it would be difficult to dance in here, but worth the effort. Sound advice: the gravel underfoot shifts and sinks either side of the disused train tracks running through this tunnel, but the energy is overwhelming.

Fists and arms thrust up to atmospheric, rolling tech, the lighting creating electrical storms of blues, purples and reds. Five minutes from Gothenburg Central Station, local heavyweights Aniara have hijacked an all-but-forgotten railway siding,

and one half of roster stars Genius of Time, Arkajo, is in full effect.

The session’s raison d’être is Way Out West, one of Scandinavia’s premiere festivals at which the entire town wants to party. But Mixmag has wandered off the official nighttime programme into one of the city’s ‘underground clubs’, where legal loopholes offer a chance to escape Sweden’s early curfews and prohibitive venue costs.

“Every unlicensed party is organised as a private party, so you need to have guest list for entry,” explains Martin Nowakowski when we ask how these events work. Also known as DJ Lily, his uncompromising techno takes us through to tomorrow morning, packing the heaviness his two labels, BROR and LILIES, are best known for.

“We don’t really have big-room clubs that hold major techno names,” he explains. “The Swedish scene is more about the parties themselves that move from place to place. So you never know if the same promoter is going to be able to find a good new venue. That’s what keeps it exciting, but it’s also very hard on the community, because the community needs a beacon.”

With tens of thousands marauding around Gothenburg for Way Out West it would be easy to assume this could be that beacon – if only for one weekend a year. That’s not quite the case, though, as the main event doesn’t prioritise dance music per se.

Focussing during the day on Slottsskogen, a stunning park in the centre of the city, 2018’s headliners run the gamut from Patti Smith to M.I.A., Nils Frahm to Little Dragon. DJs and producers, meanwhile, get one of the smallest areas, albeit the most beautiful, known as Dungen.