Tringford Reservoir is a large water body located in Hertfordshire, England. It was constructed in the 19th century to supply drinking water to the surrounding areas. The reservoir is part of the Grand Union Canal system and is known for its scenic beauty and diverse wildlife. The reservoir covers approximately 100 acres and is surrounded by walking paths and nature reserves. It is a popular spot for outdoor activities such as birdwatching, fishing, and hiking. The area is also home to various species of plants and animals, making it an important ecological site.