Every year thousands of people get together for the Pride Parade to celebrate the International Day of LGBTI Freedom.
This event is part of the Pride BCN programme and starts with a gathering of floats in the Jardins de les Tres Xemeneies. The parade takes place between 6 pm and 8 pm and will go along Av. Paral·lel as far as Pl. Espanya, where a manifesto will be read out before the party begins.

https://agenda500.barcelona.cat/en/detall/pride-parade_99400091257.html