Weir Bridge Colin Glen
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Colin Glen Forest Park

Colin Glen Forest Park is a beautiful wooded river glen on the edge of Belfast and Lisburn. It comprises 200 acres of scenic woodland, river, open grassland, waterfalls and wildflower areas.

Colin Glen was a major player in the Belfast linen industry with the McCance family establishing flax and beetling mills along the Colin River. The remains of the mill race can still be seen at the weir bridge. Water was also diverted to the nearby Half Moon Lake – now an area for wildlife in the heart of the Lenadoon housing estate.

Colin River flows past a fantastic fossil bed with spate floods bringing down a range of material including ammonites, crinoids and even sharks teeth.

The site contains the SkyTrek activity course and has Green Flag status.

Where to walk….

Colin Glen Forest Park Map
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Where to walk

Blue route. A 2.8 mile (4.5km) route, which takes in panoramic views of Belfast including the Mourne Mountains, Stormont and Harland and Wolff.

  • E
    easy

Red route. This 4 mile (6.5km) route is most suited to the serious walker and leaves lower Colin Glen into the National Trust owned upper Glen.

  • G
    gentle
  • M
    moderate

Yellow route. This 2.3 mile (3.5km) route follows the river along much of its route through broadleaf woodland and is both pram and wheelchair friendly.

  • G
    gentle

Green route. This 1.5 mile (2km) route leads you as far as a Gamekeeper’s bridge where a toll was once charged for crossing the river. A section of steps are optional.

  • E
    easy
  • G
    gentle

The Belfast Hills Partnership actively promotes responsible countryside enjoyment. We hope all visitors to the Hills will take note of our Access Code and behavioural guidelines to ensure that the Hills remain a safe, welcoming and beautiful space for all to enjoy.

Download the Access Code
Access Code