The Poisoned Glen
An outdoor nature-reserve in Donegal
The Poisoned Glen (Gleann Nimhe) is a spectacular U-shaped glacial valley in County Donegal, Ireland, surrounded by the Derryveagh Mountains. A short, easy walk leads to a beautiful waterfall. Families can enjoy the dramatic scenery, but note there are no facilities except a small car park. Best for children aged 5+ who can handle uneven terrain. The name comes from a legend about a poisoned well. Highlights: Waterfall, mountain views, photo opportunities. Ages: Suitable for school-age kids; toddlers may need carrying. Facilities: Car park only. No toilets, shops, or café. Tips: Wear sturdy shoes, bring water and snacks. Check weather as paths can be slippery.
At a glance
Entry
Free / cheap
What parents should know
The Poisoned Glen (Gleann Nimhe) is a spectacular U-shaped glacial valley in County Donegal, Ireland, surrounded by the Derryveagh Mountains.
clothing
Bring sturdy footwear for uneven terrain
Wear proper walking boots or sturdy shoes with good grip. The paths can be uneven and slippery, especially after rain.
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Today
Moderate drizzle
22°C
Light showers expected — plan for indoor spells
Opening hours
Opening hours could not be confirmed.
Last checked 24 May 2026, 11:09.
No formal opening hours - free access natural attraction within Glenveagh National Park
Plan your visit
Worth combining
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