Though founded in Barcelona, the program relocated to Zaragoza in 1999. The move took place in order to facilitate the ease with which students learned and heard Castilian Spanish spoke around them. As the program grew in Barcelona, it became clear that the proliferation of Catalan, as well as the number of tourists, detracted from the immersion of the students. The move to Zaragoza, the fifth largest city in Spain, provided students with a city environment with less tourist attraction, making it necessary for Castilian Spanish to be spoken throughout the city.