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Alderney travel guide: gannets, history, and Britain's wildest Channel Island

Alderney travel guide: gannets, history, and Britain's wildest Channel Island

Alderney, British Channel Islands: 40,000 gannets at Les Etacs, WWII memorials, Alderney Railway, Bird Festival. Fly from Guernsey in 25 min.

Quick facts

Best for
Wildlife, history, off-the-beaten-track travellers
Days needed
1-2 days
Currency
GBP (Guernsey pound at par)
Get there
Aurigny flight from Guernsey (~25 min) or summer ferry

Britain’s most northerly Channel Island

Alderney sits at the northern tip of the British Channel Islands, only eight miles from the coast of Normandy and about 60 miles from mainland England. It is roughly 3.5 miles long and a mile and a half wide, with a permanent population of around 2,000 — making it the third-largest Channel Island by population, behind Jersey and Guernsey.

It is also the most individual. While Guernsey and Jersey have grown into fully modern jurisdictions with busy towns, restaurants, and international airports, Alderney retains a character that is harder to define: part French, part fiercely British, with a strong sense of community and a pace of life that feels deliberately unhurried. The capital, St Anne, is a grid of Victorian granite streets built with a confidence that its modest size doesn’t quite justify. The surrounding countryside is wild and exposed — cliff paths carved by Atlantic weather, fortifications in various states of ruin, and one of the largest gannet colonies in the world just offshore.

This guide covers how to reach Alderney from Guernsey, what to do in one or two days, where to stay, and why the island’s history — including its painful Second World War chapter — matters for understanding the Channel Islands as a whole.


How to get to Alderney

By air from Guernsey

Aurigny Air Services operates scheduled flights between Guernsey Airport and Alderney Airport year-round. The flight takes approximately 25 minutes and offers views of the entire northern Channel Islands on a clear day.

Practical details (2026):

  • Multiple daily flights in summer (typically 3-5 per day)
  • Reduced frequency in winter but year-round service maintained
  • Fares typically £40-90 one-way depending on season and booking lead time
  • Luggage allowance is limited on the small aircraft used — check Aurigny’s current policy

Alderney Airport is a small grass-and-tarmac airfield; arrivals and departures have a pleasingly old-fashioned informality.

By ferry (seasonal)

In summer (approximately May-September), a passenger ferry service connects Guernsey to Alderney. The crossing takes around 2-3 hours depending on the service and route. This is a longer and weather-dependent option compared to flying — check current operators (Travel Trident has operated this route seasonally) before planning around it.

From mainland UK

There is no direct regular service from mainland UK to Alderney. The standard route is via Guernsey: fly to Guernsey on one of the frequent services from London Gatwick, Southampton, Manchester, or Bristol, then take the 25-minute hop to Alderney. The total journey from London can be done in under three hours door-to-door with good connections.

See our how to get to the Channel Islands guide for full options.


Things to do on Alderney

Les Etacs and the gannet colony

The sea stacks known as Les Etacs, just off Alderney’s western tip, host one of Britain’s largest northern gannet colonies — approximately 40,000 breeding pairs return each year from late winter through summer. Watching gannets dive-bomb the sea from 30 metres at speeds approaching 100 km/h is one of the most spectacular wildlife sights in the British Isles.

The best viewpoints are from the clifftop at the Hanging Rock or from the path towards Fort Clonque on the west coast. Guided wildlife walks and boat trips (when available) bring you closer to the rocks. The breeding season runs roughly February through August; peak activity is May-July when chicks are visible.

Burhou Island and Atlantic puffins

Burhou is a small uninhabited island about a mile north-west of Alderney, famous for its breeding Atlantic puffin colony. Puffins nest in burrows on Burhou from May through July. Landing on Burhou is restricted to protect the colony, but organised boat trips (check locally for current operators) take visitors close enough for good views. Binoculars are essential.

The combination of gannets at Les Etacs and puffins at Burhou makes Alderney one of the finest seabird destinations in the British Channel Islands.

Mannez Lighthouse and quarry

Mannez Lighthouse stands at the north-eastern tip of Alderney — a squat, white-painted structure on a promontory overlooking the dangerous tidal races of the Alderney Race. The lighthouse is open to visitors on selected days in summer, and the surrounding headland offers some of the finest views on the island: northward to the Cherbourg peninsula on clear days, east to the French coast.

Mannez Quarry, adjacent to the lighthouse, supplied the granite used to build many of the island’s Victorian fortifications. Today it is a nature reserve with interesting quarry flora and is one of the places the Alderney Railway passes through.

Alderney Railway

The Alderney Railway holds the distinction of being the only working railway in the Channel Islands. It runs a short route between Braye Road Station and Mannez Quarry — just under two miles — using restored diesel locomotives and vintage carriages. The railway originally served the WWII German fortifications and was retained after the war for quarry use; today it is operated by volunteers as a heritage attraction.

Trains run on summer Sundays and bank holidays. This is a minor but genuinely charming attraction — especially for railway enthusiasts and families with children.

Fort Clonque

Fort Clonque is one of the most dramatically sited Victorian-era forts in the Channel Islands. Built in the 1840s as part of a British defensive network, it sits on a rocky tidal islet connected to the Alderney mainland by a causeway that floods at high water. The Landmark Trust now rents Fort Clonque as self-catering holiday accommodation — one of the most extraordinary places to stay in all the British Isles. Even if you are not staying, the walk out to the causeway at low tide and the views back along the west coast are worth the detour.

Quesnard Lighthouse

On the north-east headland near Mannez, Quesnard Lighthouse (sometimes spelled Quesnard) is the taller of Alderney’s two lighthouses. The surrounding area has good birdwatching during spring and autumn migration, when the island acts as a landfall for tired migrants crossing the English Channel. Warblers, flycatchers, and rarities from mainland Europe turn up regularly in suitable weather conditions.

St Anne — the island capital

Alderney’s town, St Anne, was largely built in the Victorian era when the British government invested heavily in fortifying the island. Its wide Georgian-proportioned streets and solid granite buildings give it an architectural coherence unusual for an island of its size. The town has a church, a small museum (the Alderney Society Museum, which covers the island’s natural and human history), a handful of shops, several pubs, and a weekly market.

Walking around St Anne takes an hour; it rewards unhurried wandering.

Cliff walks and the coastal path

Alderney has a good network of signed footpaths, particularly along the southern and western cliffs. The southern coast offers high, dramatic views over the English Channel and towards Guernsey on clear days. The western coast path linking St Anne with Fort Clonque and the Les Etacs viewpoints takes about 2 hours one-way.


WWII history on Alderney

Alderney’s Second World War history is the most painful chapter of any island in the British Channel Islands, and it deserves to be understood with care and accuracy.

When German forces occupied the Channel Islands in June 1940, the British government took the decision to evacuate most of Alderney’s civilian population — some 1,400 people — before the German arrival. This made Alderney unique among the occupied Channel Islands: the population was gone, leaving the island available for German military purposes with minimal civilian witness.

The Germans used Alderney to construct fortifications as part of the Atlantic Wall and, between 1942 and 1944, operated four forced-labour and concentration camps on the island. These were the only concentration camps established on British soil during the Second World War. Thousands of forced labourers — prisoners of war, political prisoners, and Jewish deportees — passed through these camps. The exact number of deaths on Alderney remains a matter of historical research and debate, but the suffering was significant and documented.

The camps were:

  • Lager Sylt (SS camp, later known as SS Lager Sylt), which operated under direct SS control — the most brutal of the four
  • Lager Borkum, Lager Norderney, and Lager Helgoland — Organisation Todt labour camps

The Hammond Memorial, situated near the Longis Bay area, commemorates those who died on Alderney during the occupation. It is a quiet, dignified site and the appropriate place to reflect on this history. The Alderney Society Museum in St Anne also covers the occupation period in detail, drawing on recent historical research.

This is a chapter of Channel Islands history that was long under-discussed — partly because the island’s civilian population was absent and could not serve as primary witnesses. Academic research, most recently supported by the Alderney authorities themselves, has worked to document what occurred with appropriate thoroughness. Visitors who engage with this history will find it illuminating, not only for what it reveals about Alderney, but for what it says about the experience of the British Channel Islands under occupation more broadly.

For the wider Channel Islands WWII context — including the German Underground Hospital on Guernsey and the Jersey War Tunnels — see our Channel Islands WWII occupation guide.


Alderney Bird Festival

Each October, Alderney hosts its annual Bird Festival — a weekend of guided walks, boat trips, talks, and social events centred on the island’s exceptional birdwatching.

Why October? Autumn migration is one of the most exciting periods in European birdwatching. Alderney’s position in the English Channel makes it a prime landfall for migrants — warblers, flycatchers, chats, and a reliable trickle of genuine rarities blown in from Eastern Europe and Siberia in easterly winds.

What the festival offers:

  • Guided dawn chorus and morning walks with expert local naturalists
  • Pelagic (offshore) boat trips for seabirds including Cory’s shearwaters, storm petrels, and Sabine’s gulls
  • Evening talks and social evenings at local pubs
  • Friendly and accessible to beginners as well as experienced birders

The festival draws a community of birdwatchers who return year after year — partly for the birds, partly for Alderney’s own atmosphere. The island in October is past peak tourist season, and the combination of Atlantic light, emptier paths, and the sociability of a small-island community in festival mode is genuinely appealing.

Check the Alderney Wildlife Trust website for current festival dates and programme.


Where to stay on Alderney

Alderney has a modest but functional range of accommodation.

Braye Beach Hotel is the island’s main hotel — a converted Victorian building right on Braye Beach, with a bar, restaurant, and terrace. It serves as the social hub of the island in summer, and the terrace is the place to watch sunsets over the Alderney Race. Rates from approximately £130-220 per night.

Belle Vue Hotel is a smaller, friendlier option in St Anne — a Victorian townhouse with a handful of rooms, a local clientele, and a more intimate atmosphere. Rates from around £80-130 per night.

B&Bs and self-catering options are available and listed via Alderney Tourism. Several properties close in winter.

Fort Clonque (via the Landmark Trust) is the extraordinary option: rent part of the tidal fort for a multi-night stay. It sleeps up to 13 people across multiple bedrooms and offers an utterly singular experience. Expensive and books out early.

Alderney is small enough that almost any accommodation puts you within walking distance of the town, the beach, and the cliffs.


Where to eat and drink on Alderney

Braye Chippie is a beloved island institution — a traditional fish-and-chip shop near the harbour at Braye Beach. Open in season; cash preferred. It represents everything right about simple Channel Islands food.

The Georgian House in St Anne is Alderney’s most polished dining option — local seafood, island produce, and a wine list that reflects the French proximity. Booking advisable.

The Marais Hall (also known as the Marais Farm) has hosted various food events and pop-ups and is a good place to check for current offerings.

The island’s pubs — including the Braye Beach Hotel bar — are sociable and unpretentious. Tennerfest, the Channel Islands restaurant festival, reaches Alderney in October and coincides neatly with the Bird Festival.


Seasonality and when to visit

April to September is the main tourist season. Flights are more frequent, ferry services operate, and all accommodation is open.

May to July is optimal for wildlife: gannets at peak activity, puffins at Burhou, wildflowers on the clifftops.

October brings the Bird Festival and autumn migration — a genuinely exciting time for naturalists.

November to March: Alderney is accessible year-round by air (unlike Herm or Sark), which makes it more feasible in winter than the other small islands. However, visitor infrastructure is reduced and the weather can be challenging.


Alderney in context: the smallest community in the Channel Islands

With around 2,000 permanent residents, Alderney has more people than Sark but far fewer than Guernsey or Jersey. It has its own government — the States of Alderney — which is subordinate to Guernsey’s Bailiwick but retains independent responsibility for most local affairs. There is no income tax on the island, and a small community of remote workers and retirees has been attracted by the pace and character of island life.

Alderney is the most “frontier” of the British Channel Islands for visitors: the least polished, the most individual, and the one most likely to surprise you. It rewards curiosity over comfort.

For a broader picture of the five islands and which suits your travel style, see our best Channel Island to visit guide and our comparison of all five islands.

For organised activities and experiences on Alderney, browse what is available on GetYourGuide’s Alderney hub. For a wider Channel Islands perspective, explore the Channel Islands UK hub on GetYourGuide.


Frequently asked questions — Alderney travel guide

How do I get to Alderney from the UK?

The standard route is to fly to Guernsey (from London Gatwick, Southampton, Manchester, Bristol, and other UK airports), then take an Aurigny flight from Guernsey to Alderney — a 25-minute hop. Total journey time from London is around 2.5-3 hours with a good connection. There is no direct UK-mainland service to Alderney.

Is there a ferry from Guernsey to Alderney?

A seasonal passenger ferry runs in summer (approximately May-September). The crossing takes 2-3 hours. Flying with Aurigny is faster and available year-round, making it the preferred option for most visitors.

What is the gannet colony at Les Etacs?

Les Etacs is a group of sea stacks off Alderney’s western coast hosting one of Britain’s largest northern gannet colonies — around 40,000 breeding pairs return each year. The colony is visible from the clifftop path near Fort Clonque. Gannets are spectacular birds: white with golden heads and a wingspan of around 180cm, famous for diving vertically into the sea at high speed to catch fish.

What happened on Alderney during WWII?

The island’s civilian population was evacuated before German occupation in 1940, and the Germans subsequently operated four forced-labour and concentration camps on the island — the only such camps on British soil. The Hammond Memorial near Longis Bay commemorates those who died. The Alderney Society Museum covers the occupation in depth. This history is treated with dignity and seriousness by the island community.

When is the Alderney Bird Festival?

The festival takes place each October, typically over a long weekend. It features guided walks, boat trips, talks, and social events focused on the island’s birdwatching, including autumn migration. Check the Alderney Wildlife Trust website for current dates. Accommodation books up quickly for festival weekends.

Can I visit Alderney in winter?

Yes — unlike Herm and Sark, Alderney has year-round air links via Aurigny from Guernsey. The island is quieter from November to March, and some accommodation and restaurants reduce hours or close. The landscape and birdwatching can be exceptional in autumn and early winter, particularly during easterly winds that bring migrant birds.