A picture of Five Arch bridge on the Cray River in South East London, where Mary and I completed another section of the London Loop on Saturday. The bridge's function is almost purely decorative as it spans a dam at the end of an ornamental lake which formed part of the estate through which the river flows.  Very nice walk - a lot of people about but few London Loop walkers. Are there any still doing it? We've only 19 miles to complete the task. I suppose the next challenge will be to walk around London in a circle of 25 mile radius i.e. outside the M25 and far enough away from it not to hear it.