Calella is a seaside town on the Costa Maresme (Catalonia), it has over 18,000 inhabitants, it is properly called Calella de la Costa, so as not to confuse it with another town called Calella de la Palafrugell. In the 1970s and until the mid- 1990s, Calella was an important tourist destination for European tourists (especially German, English, Dutch, French and Danish), being known popularly as “the Germans Calella”, reaching triple its population during the peak tourist season (which coincides with the end of spring, summer and early autumn) when the weather is at its best. Though not quite so popular these days, Calella today welcomes visitors from all over Europe.
See a guide to Calella de la Costa here: http://www.needahandspanishproperties.com/calella.html