The Bustling Streets of Valencia
If you don't like crowds, you should avoid Valencia during the Fallas festival. The crowds were almost always in good mood or, at the very least, resigned to not moving very fast. It appears that moving fast can be accomplished if you hire someone in a high-vis vest who will barge through the crowd, dragging a well-dressed family behind them to the front of the crowd.
https://inphotos.org/2025/03/22/the-bustling-streets-of-valencia/