London’s a pretty big place, and with so many clubs and bars to choose from you could spend forever traipsing around and still not find the best of the lot. That’s why the 1 Big Night Out team come in – they’ve been showing Londoners, backpackers and students the best spots for five years. If anyone knows, they do. This time their epic bar crawl is ending with a massive pool party for you to dip your toes into, so don your best swimwear and dive on in. Over 18s only. Don't forget to bring your swimsuit, a bag for your belongings, a towel, dressing gown of some sort, and flip flops.