Plymouth is a city in Devon, and the largest city on England's south coast, with a population of 250,000. It is about 190 miles (310 km) south-west of London, where the River Plym and the River Tamar (pronounced "TAY-mar") flow into the large bay of Plymouth Sound, creating a perfect natural harbour. The sea has been at the heart of Plymouth since it was founded in the middle-ages as a trading post and the source of its prosperity. Plymouth was the point from which the Pilgrim Fathers left England in 1620 for Massachusetts - commemorated today in the Mayflower Steps.
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