We went to see the fireworks of the Nit de l'Alba in Elche. Afterwards we went to the Europa FM Barraca, the sort of open air temporary disco typical of most festivals in Alicante province.
We didn't stay long, bit too young for us, but the friends we were with were impressed that the youngsters who were there didn't make a dash for the bar and get legless as fast as they could. In fact they seemed to be there to chat with their mates, pose and dance. We suspect the same would not be true in the UK.
Spanish youngsters do, of course, get drunk and the botellon, a sort of open air drinking party arranged via SMS messages, is a phenomenon that older Spaniards find both sad and incomprehensible.