Carsington Water, at the heart of the route, was opened in 1992 and is one of the largest reservoirs in England. The visitor centre tells the story of the reservoir and the surrounding area in a display aimed largely at children who visit on school trips. The reservoir covers an area of 741 acres (300ha) and is just over 100ft (30m) at its deepest. Its location, high up above major river catchments and close to limestone uplands (although the site itself is on impermeable sandstones and shales), means that most of its water is pumped up from the River Derwent at Ambergate, which is over 6 miles (9.7km) away and is 430ft (131m) lower than the average water level in the reservoir. Click here for more details.