What is the fine-grained topic of the following text: Ibiza is the third largest of the Balearic Islands, covering just 225 square miles (585 square km), but in recent times it has become the best known of the archipelago and a hugely popular destination for young revellers, middle-class European package tourists, and gay travellers, whose collective character imbue the island with a chic and trendy atmosphere that is well expressed by its famously frenetic nightlife. Only return the topic.
Ibiza as a popular tourist destination