The River Idle is a river located in the East Midlands of England. It flows through the counties of Nottinghamshire and Lincolnshire, eventually joining the River Trent. The river is approximately 20 miles long and is known for its gentle flow and scenic surroundings. The River Idle is part of a larger network of waterways that support local wildlife and provide recreational opportunities. It is often used for activities such as fishing, walking, and cycling along its banks. The river also plays a role in local agriculture by draining surrounding farmland.