Where is it?

[Marcel Banús i Banús]

It's in Europe.
The people speak Catalan.
It's in Catalonia.
It's on the coast.
In spring there's a famous festival. https://www.tarracoviva.com/
It isn't the capital city.

[matias.romanowsky]

Is Barcelona.

[Admin]

Thanks for writing Matias! It's not Barcelona, because Barcelona is the capital of Catalonia.