Second Longest River in Kent

The River Medway is Kent's second-longest river (after the Thames, which forms its northern boundary). Rising near Westerham, it flows ~70 miles (113 km) northeast through Tonbridge, Maidstone, and Rochester before entering the Thames Estuary at Sheerness. The Medway is navigable for ~35 miles and historically powered the county's paper, brewing, and naval industries.