La Mercè — Barcelona

Barcelona · Around 24 September

Barcelona's biggest street festival — fireworks (piromusical), the correfoc fire-run, concerts and packed plazas drawing very large crowds through the historic centre.

~100,000
Estimated peak crowd
~1,334
Trained volunteers we'd recommend
High risk
Crowd-safety risk

Why the crowd is risky

  • Fire-runs and fireworks concentrate crowds into tight historic streets and squares.
  • Multiple simultaneous draws move large crowds between confined spaces.
  • Alcohol and night-time conditions reduce situational awareness.

Critical locations

Narrow streets of the Gothic Quarter

Medieval lanes funnel dense crowds toward squares with few exits.

Fireworks viewing areas (e.g. by the waterfront)

Everyone faces and surges one way, then leaves at once.

Working this event?

In our view, stewards and volunteers in crowd-facing roles at an event like this benefit from basic crowd-safety training — knowing how to read density, keep routes clear and act in a crush. Our certificate covers exactly that.

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These are our own event profiles, compiled from public information. We are not affiliated with, nor do we endorse, these events. Attendance figures are planning estimates, and the recommended number of trained crowd-safety volunteers is a rough guide based on common steward ratios — not an official figure or a legal requirement.