Help! Struggling for summer holiday ideas abroad to suit our family of four with two teenagers aged 15 and 17. We're after somewhere with activities, ideally where there's a chance for them to meet others their own age. Also somewhere with a bit of life in the evenings (nothing too tacky but some buzzing bars/restaurants would be perfect, ideally within walking distance). An added bonus would be some interesting places to visit nearby for day trips without loads of driving. We've done Neilson/Club Med holidays in the past but they're just too pricey for us at the moment so any ideas on a bit of a budget much appreciated.