This is a one-page easy to use route map of the River Thames, a perfect London to Oxford waterway companion. Laminated and showerproof, keep it by the helm! Ideal for passage planning. Shows locks, bridges, main channels, visitor moorings, marinas and boatyards, chandleries, electric charging availability, refuse disposal, sewage pump out and chemical toilet disposal. At 30.4cms x 14cms, also makes a great large bookmark!