Data from over 20 million journeys made with the London Cycle Hire Scheme ("Boris Bikes") are used to feed an animation of our bicycle movements across London. Our journeys are captured and rendered as smoothly flowing curves through the capital. The apparent chaos of so many journeys gradually clears as structures emerge that reflect our reasons to travel. Leisure cyclists exercise their way around the royal parks; commuters hurry to and from railway stations; weekenders embark on cultural excursions of museums and galleries.