"Old wall where sudden lizards flash. At Charenton I watched them.' (U9.662)

Though Charenton can mean several places, I think it refers to Charenton-le-Pont, a commune in the southeastern suburb of Paris, 6.2 km (3.8 miles) from the centre of Paris. Charenton is on the Seine river, and can be reached from Paris by boat, or simply by walking along the quays.