ℹ️ There are six self-guided walks, which are signposted and described in our walks booklet.
📖 Download our walks booklet or click on the individual locations below for maps and guidance.
📣 To mark James Hutton’s 300th birthday, we’ve provided more detailed information on his two most important sites on Arran: Hutton’s Unconformity and North Glen Sannox.
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North Arran Granite |  |
Sheets/sills |
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Central Complex |  |
Highland Border Complex |
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New Red Sandstone |  |
Old Red Sandstone |
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Carboniferous Rocks |  |
Dalradian Schists |
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Roads |  |
Info Hub |
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Self-guided walks |  |
Geopark Boundary |
1. Hutton’s Unconformity Walk
See the outcrop where James Hutton – the ‘father of modern geology’ – changed human understanding of the planet.
2. North Arran Walk
Discover Arran’s industrial past and follow in the footsteps of the largest invertebrate to ever walk on land!
3. Corrie Shoreline Walk
Follow Arran’s journey through 100 million years of geological time, from tropical seas to stormy deserts.
4. Glen Rosa Walk
Discover how the erosive power of ice sculpted Arran’s rugged peaks and deep glens.
5. King’s Cave and Drumadoon Walk
Enjoy spectacular views of the Drumadoon Sill’s sheer cliffs and find evidence of the mysterious ‘hand-beast’.
6. Kildonan Shore Walk
Explore the evidence for continents breaking apart and search for the footprints of an ancient beast.
Arran Heritage Museum
OPEN 7 days. View an extensive collection of geological specimens from all over Arran and learn of the island’s culture, history, and archaeology.
Lochranza Info Hub
OPEN 7 days. Learn about Arran’s spectacular landscape and diverse geology, how it influenced scientific thinking, and the island’s industrial heritage.
Brodick Castle Nature Room
CLOSED – Due to building works.
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North Arran Granite | |
Sheets/sills |
|
Central Complex | |
Highland Border Complex |
|
New Red Sandstone | |
Old Red Sandstone |
|
Carboniferous Rocks | |
Dalradian Schists |
 |
Geopark Boundary | |
Roads | |
Information Centre |
|
Self-guided walks |