The Ingrebourne River is a river located in Essex, England. It flows for approximately 10 miles, starting from Havering and eventually joining the Thames River. The river is primarily fed by several smaller streams and is known for its natural beauty and diverse wildlife. The Ingrebourne River is part of the Ingrebourne Valley and is surrounded by parks and nature reserves, making it a popular spot for walking and birdwatching. Efforts have been made to improve the river's water quality and enhance its habitats, benefiting both the environment and local communities.