Data source: https://www.openstreetmap.org/
Author: https://old.reddit.com/r/MapPorn/comments/1f38xe2/tennis_court_density_of_europe/
Population map of Europe
Data source: https://www.openstreetmap.org/
Author: https://old.reddit.com/r/MapPorn/comments/1f38xe2/tennis_court_density_of_europe/
Population map of Europe
I think the population density argument plays best here. I’m not as well versed in Spain, but for Portugal the largest concentration is Porto and Lisbon.
For Spain the highest concentration seems to be on Mallorca, which is a tourist hotspot.