Les Etacs
Two rock stacks off Alderney carrying a large northern gannet colony.
Updated 3 September 2026
Les Etacs, the Garden Rocks, stand just off Alderney's western point and carry a colony of several thousand pairs of northern gannets, birds packed onto every ledge with a constant traffic of arrivals and departures overhead. The colony established itself only in 1940 and has grown since. It is visible clearly from the cliff path at Giffoine, and boats run round it in summer. A second colony sits on Ortac, a stack a few kilometres further out, and the two together hold most of the Channel Islands' gannets.
Highlights
- The gannet colony - several thousand pairs packed on the stacks.
- The flight traffic - constant arrivals and departures over the rocks.
- The cliff viewpoint - the path at Giffoine looking straight across.
- The recent origin - a colony that only established itself in 1940.
When to go
April to September is the breeding season when the stacks are full. Birds leave through the autumn. Boat trips run only in summer and are cancelled in swell.
Practical notes
From land the birds are across water and binoculars matter. Boat trips are seasonal and weather-dependent. The smell of the colony carries on the wind.
Nearby
Fort Clonque is south, and St Anne is east.
Key facts
Source: Wikidata, item Q179313, read on 18 October 2026.
What to pack for Les Etacs
Chosen from what this place is for. Tap a kit for the full checklist.
- Broken-in walking shoes or boots - Grip and ankle support matter more than looks; never hike in brand-new boots. Find on Amazon
- Layers + a waterproof shell - Mountain weather turns fast; a packable rain jacket saves the day. Find on Amazon
- Daypack with rain cover - 20-30 litres holds water, snacks, layers and a first-aid kit. Find on Amazon
- Offline maps + a power bank - Download the trail before you lose signal; carry backup charge. Find on Amazon
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