As many as 80,000 fans descending on a city with a population of 345,000.
It is not hard to imagine how the northern Spanish city of Bilbao will be tested as Manchester United and Tottenham prepare for Wednesday's Europa League final.
Uefa, European football's governing body, has apologised in the past for the chaotic scenes at the 2022 Champions League final between Liverpool and Real Madrid in Paris and for transport issues at the 2023 final between Manchester City and Inter Milan in Istanbul.
So how is Bilbao coping?