Catalonia is a region in northeastern Spain that welcomes many tourists from countries like France, Italy, Russia, Germany, and the United Kingdom. The capital of Catalonia is Barcelona. The document discusses various activities that take place at Institut Guillem Catà, including a big band program that allows students to learn instruments, talks with women about their studies and experiences, an annual Christmas performance called "Nadal al Cata", a performing arts festival, a cooking activity where students prepare dishes containing microorganisms, and creating musical instruments from recyclable materials.