Mykonos is the most visited and most expensive of the islands, and the most cosmopolitan too with an awesome night life, great beaches and shopping, and is a popular destination for gay travellers (of which we saw plenty). A lot of celebrities own houses here too. Because of the fiasco with the ferries we only had one full day on Mykonos, so we hired another quad bike to tear around on, and made up for it with a big night out on the town that I only vaguely remember (though I do remember the 90-minute walk back to the hotel from town at 5am!).