Cransley Reservoir, also known locally as Three Chimneys, is a lake located near the village of Thorpe Malsor in Northamptonshire, England. It was originally constructed in 1892 to supply water to the local towns of Kettering, Rothwell, and Desborough. However, it ceased to be used as a reservoir in the 1970s and is now a popular spot for leisure activities.

Here are some of the things you can do at Cransley Reservoir:

• Go for a walk or hike: There is a 6-kilometer circular trail that goes around the entire reservoir. The trail is relatively easy and takes about an hour and a half to complete.
• Do some birdwatching: The reservoir is a haven for wildlife, and you can see a variety of birds, including ducks, geese, and swans.
• Go fishing: The reservoir is stocked with fish, and you can obtain a permit to fish there.
• Go sailing: The Cransley Sailing Club is located on the eastern shore of the reservoir, and they offer sailing lessons and opportunities to rent boats.

If you are looking for a peaceful place to relax and enjoy the outdoors, Cransley Reservoir is a great option. Keep in mind that the reservoir is privately owned, so be sure to respect the property and follow any posted rules.