Open Plaques is quite smart. When a few plaques have been geolocated it will use the average to define where this area is.
If you would like to see the map a bit sooner then you could help us.
Just find 'Saint-Jean-de-Luz, France' on Google Maps and tell us the web url: .
We will extract the geolocation. Probably.
rue Gambetta, Saint-Jean-de-Luz, France