Victory Gold Box puzzle made by Hayter & Co., subsidiary of Spear & Sons, Bournemouth, England in 1970's. Interlocking, cut with 12 figure pieces. Photo. Cambridge students are poling the punts and relaxing along the river bank. The River Cam (/ˈkæm/) is the main river flowing through Cambridge in eastern England. After leaving Cambridge, it flows north and east before joining the River Great Ouse to the south of Ely, at Pope's Corner. The total distance from Cambridge to the sea is about 40 mi (64 km) and is navigable for punts, small boats, and rowing craft. The Great Ouse also connects to England's canal system via the Middle Level Navigations and the River Nene. In total, the Cam runs for around 69 kilometers (43 mi) from its furthest source (near Debden in Essex) to its confluence with the Great Ouse. Wikipedia