The Blauwe Kei – De Maat

The Blauwe Kei (Blue Boulder) owes its name to a large blue slate from the ice age and is known for its lock complex. This surprising slice of nature on the border between Lommel and Mol, is interspersed with dunes, hay meadows, deciduous forests, heathland, fens, shallow ponds and marshes.


Tip: this nature reserve is home to rare birds such as the kingfisher, honey buzzard and hawk! A pair of binoculars and a camera are a must when visiting in autumn.


Hiking loops

Starting point Blauwe Kei car park

  • Green: 4.9 km
  • Yellow: 8.8 km
  • Red: 11.1 km


Starting point Ecocentrum De Goren

  • Orange: 8.3 km (follow the brown crosses to the orange trail).
  • Blue: 11 km


  • Starting point and parking: Blauwe Kei car park (at lock 1), Blauwe Kei (no number), Lommel. You can also start at Ecocentrum De Goren in Mol.
  • Public transport: Bus line 84 Hamont – Yellow, bus stop Werkplaatsen – Stevensvennen. You can also reserve the on-call belbus.
  • Hiking map: €2.5 from our tourist information office or here digitally.



The hiking loops are not wheelchair friendly. In dry weather, they are easy to do with a sturdy children’s pushchair