Anti-Sonar is an alternative to Sonar which runs in Barcelona at the same time. It's free and much more fun.

Whereas Sonar attracts a moneyed, trendy, international crowd, Anti-Sonar is an anarchic impromptu festival for the scruffier inhabitants of Barcelona who can't afford or simply resent the festival and the hordes of techno tourists that take over the city for the weekend. Don't expect any big name DJs. Expect unrelenting hard techno, and bring your own water, beer, absinthe, and suncream, as you'll be dancing through into the morning.

Usually located on the outskirts of the city near to the Sonar by Night festival site, follow the crowds or ask around

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