The River Plym is a river located in Devon, England. It flows for approximately 12 miles, starting in the Dartmoor National Park and winding its way through the city of Plymouth before emptying into the English Channel. The river is known for its scenic beauty and diverse wildlife, making it a popular spot for outdoor activities. The River Plym is an important waterway for the local ecosystem and has historical significance, as it has been used for trade and transportation for centuries. The river's catchment area includes several tributaries, contributing to its flow and supporting various habitats along its banks.