Where can I go on a holiday with a group of friends 18 years old w want a beach holiday with watersports with a bit of nightlife but do not want to go somewhere full of British chavs like Malia Zante?

Puerto Banus close to Marbella in Southern Spain. Recently featured by Piers Morgan on TV. Great shopping, fabulous marina full of designer clothes shops such as Gucci, and Prada. At night-time you can see people and watch cars. The beach is close by, providing water sports such as windsurfing and water skiing, and some famous dj's appear at the nightclubs there. Lots of self catering accommodation.