River Thames shipping coming in and out of London, in 1732 it received the world's first lightship. This became a major landmark, and was used as an assembly point for shipping. Today it is marked by Sea Reach No. 1 Buoy. The River Thames contains over 80 islands ranging from the large estuarial marshlands of the Isle of Sheppey and Canvey Island to small tree-covered islets like Rose Isle in Oxfordshire and Headpile Eyot in Berkshire. They are found all the way from the Isle of Sheppey in Kent to Fiddler's Island in Oxfordshire. Some of the largest inland islands, for example
River Sheppey River Sheppey The River Sheppey has its source in a group of springs west of the village of Doulting, near Shepton Mallet in Somerset, England. It flows through the wetlands to the north of the Polden Hills and ultimately joins the River Brue. From Doulting, the Sheppey flows south west to Charlton, where parts of its course have been culverted. The river has been diverted underground for much, though not all, of its passage through Shepton Mallet. It reappears at Darshill and then flows south west through Croscombe to Dinder where it flows through the grounds of Dinder House which