The Tunnels 2026: Brussels goes fully underground with Listen Festival & Hangar

Brussels is about to turn one of its busiest traffic arteries into a massive rave again. With The Tunnels 2026, Listen Festival teams up with Hangar to transform the Cinquantenaire tunnel into a two-day, two-stage techno playground on 4 and 5 April 2026, extending the festival’s signature love affair with unlikely urban spaces. Expect an intense, daylight‑to‑night electronic ride that blurs the line between public infrastructure and club culture.

Underground rave in the Cinquantenaire tunnels

For this 2026 edition, Listen Festival and Hangar are closing off the Cinquantenaire tunnel complex right in the heart of Brussels, converting it into an electrifying daytime arena. Originally announced as a one‑day event on 4 April, demand pushed organisers to add a second day, turning The Tunnels into a full weekend experience for techno heads. Two stages, nine‑hour sessions and a set‑up designed specifically for the acoustics and architecture of the tunnel promise an immersive, properly underground feeling.

The line‑up leans hard into high‑impact techno and acid, with Dutch selector KI/KI already announced as a key guest, joined by heavyweight names like Marcel Dettmann on one of the days, plus more artists still to be revealed. The concept stays loyal to Listen’s DNA: strong international bookings sitting alongside local heroes, and a deliberate focus on putting Brussels firmly on the global map of must‑see electronic events.

Listen’s love story with tunnels and unlikely venues

The Tunnels has already become one of Listen’s flagship formats. In 2024, the festival shut down three major tunnels beneath Place Louise for an all‑night rave that drew thousands and became an instant Brussels nightlife reference. Turning traffic infrastructure into a dance floor is more than a gimmick: it fits into Listen’s broader project of reclaiming and reimagining public space, from Brussels‑Central Station to Notre‑Dame de Laeken, via industrial sites and hidden city corners.

Since 2016, Listen has built its reputation on a hybrid approach: part club marathon, part city‑scale cultural project, with a strong commitment to local scenes and safer‑space policies like its “United Against Harassment” charter. The Tunnels 2026 pushes that logic further by literally bringing club culture into the city’s underground arteries, creating a temporary commons where Brussels locals, visiting ravers and crews from across Europe meet in a space that usually only belongs to cars.

Practical info and tickets

The Tunnels 2026 takes place on Saturday 4 and Sunday 5 April 2026, in the Cinquantenaire tunnel complex in Brussels. Traffic will be fully closed off for the event, with two stages installed inside the structure and a dedicated technical set‑up to manage sound, lights and crowd flows. Final tickets are rolling out in waves: pre‑registration via the Listen Festival website gives early access to sales before the remaining tickets go public.

If you want to be part of this XXL underground moment – and dance to KI/KI, Marcel Dettmann and a stacked cast of techno selectors in the middle of one of Brussels’ most iconic tunnels – keep an eye on Listen Festival’s official channels and ticket page. Given how fast previous tunnel raves have sold out, this is one of those “set your alarm clock” drops.

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