Hi Annie,
I'm just one and a half hours north of Barcelona near L'Escala, the diving in the general area, both scuba and freediving, is quite good. If you want to have alook at English terms translated into Spanish and different languages check out this link:
http://www.foreignword.com/glossary/...n/eng/defa.htm
It's a very useful extensive diving glossary for many European languages. Let me know when you are in the area, there are other DB members here as well.
Adrian