It took its time arriving but now that summer is well and truly here it's important to keep cool, even if you've decided on a city break. While the temperatures soar, you can still enjoy a beach experience, albeit an urban one, without surrendering culture and cuisine. Many cities offer their own cool alternatives that have proven to be a popular summer event with locals and tourists alike - the premise being if you can't get to the beach, the beach shall come to you! In most cases, thousands of tonnes of imported sand and potted palm trees are arranged along a city's river or lakes, providing the terrain to sunbathe, indulge in a spot of beach volley or kick back to some live music. Since the mother of all urban beaches appeared in Paris almost 10 years ago, many other world metropolises have followed suit with their own inner-city oases.