Greenland Reservoir No 3

The water here is genuinely still - almost glassy on a calm day, which makes it all the more unsettling when a heron suddenly lifts off from the shallows. Greenland Reservoir No 3 is one of three reservoirs serving Glasgow's water supply, and while it lacks the drama of Loch Lomond just a few miles away, it has a quieter appeal that grows on you.

It's a proper walker's spot rather than a destination in itself. The circuit around the reservoir takes about an hour at an easy pace, with decent paths and a genuine sense of being away from it all despite Glasgow being practically on your doorstep. The water is off-limits for swimming or fishing - it's a working reservoir - but the surrounding moorland and conifer plantations are yours to roam. Bring binoculars if you're into birds. The banks attract all sorts, especially in winter.

This works brilliantly as a half-day outing if you're based at Loch Lomond Retreat or Lomond Woods, both just five miles south. Those parks offer proper facilities and a proper holiday feel, whereas here you're getting something much wilder and less commercialised. It's free to access and there's a small car park at the north end. Don't expect facilities - there's nothing, not even a cafe - so come prepared. Go on a clear morning if you can. The moorland views open up properly when the light's good, and you'll beat whatever afternoon crowds might gather.