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Guernsey: 10 places worth the journey

Les Casquets, Channel Islands, Guernsey and 7 more — what each one is, and why it is worth the detour.

Places
10
Language
English, French
Currency
GBP
Les Casquets, Guernsey
Les Casquets · Small group of rocks · J woodward at English Wikipedia, CC BY-SA 3.0

What to see in Guernsey

Chosen from everything Wikidata knows about Guernsey and ranked by how many Wikipedia language editions describe them, which is about as close to "famous" as open data gets.

Les Casquets

Les Casquets

Small group of rocks

Also called (The) Casquets, a group of rocks in the Channel Islands eight miles (13 km) northwest of Alderney, administered by the Bailiwick of Guernsey and part of an underwater ridge of sandstone.

Photo: J woodward at English Wikipedia, CC BY-SA 3.0

Channel Islands

Channel Islands

Archipelago in the English Channel

An archipelago in the English Channel off Normandy's coast, in France. It is split into two Crown Dependencies: the Bailiwick of Guernsey, made up of Guernsey, Sark, Herm, Alderney and some smaller islands, and the Bailiwick of Jersey, the largest island.

Photo: Copernicus Sentinel-2, ESA, CC BY-SA 3.0 igo

Guernsey

Guernsey

English Channel island near Normandy

The second-biggest of the Channel Islands, 27 miles (43 km) west of Normandy's Cotentin Peninsula. It is the largest island of the Bailiwick of Guernsey, which also has five other inhabited islands, Sark, Brecqhou, Jethou, Herm and Alderney, plus many small islets and rocks.

Photo: Bob Embleton, CC BY-SA 2.0

Lihou

Lihou

Small tidal island, on the west coast of Guernsey, Channel Islands

A small tidal island a short way off the west coast of Guernsey, in the English Channel between France and Great Britain. Administratively it falls within St Peter's parish in the Bailiwick of Guernsey; it has had several owners over time and today belongs to the States of Guernsey.

Photo: alaingosse, CC BY-SA 2.0

Alderney Lighthouse

Alderney Lighthouse

Lighthouse

A stone lighthouse on Alderney's North-East coast, built in 1912 to protect ships from the many rocks around the island and the dangerous waters of the Alderney Race.

Photo: Colin Park, CC BY-SA 2.0

Alderney camps

Alderney camps

Nazi prison camps in the Hartell Islands

Camps built and run by Nazi Germany on Alderney while it occupied the Channel Islands in World War II. The island had four forced/slave labour sites, among them Lager Sylt, which was the one Nazi concentration camp on British soil in the wartime occupation.

Photo: Andree Stephan, CC BY 3.0

Ortac

Ortac

Island in Channel Islands

A small islet with no inhabitants about 5 kilometres off Alderney's west coast, close to Burhou. It measures about 50 by 70 metres and stands 24 metres out of the sea.

Photo: John Rostron, CC BY-SA 2.0

Burhou

Burhou

Island near Alderney, Channel Islands

A small island of the Channel Islands, about 1.4 miles (2.3 km) northwest of Alderney. Nobody lives there permanently, and as a bird sanctuary it is closed to landings from March 15 to August 1.

Photo: John Rostron, CC BY-SA 2.0

La Seigneurie

La Seigneurie

Home of the Seigneur of Sark

Traditionally the home of Sark's seigneur, who is head of Sark, in the Channel Islands.

Photo: Daniel Kraft, CC BY-SA 3.0

Little Chapel

Little Chapel

Historical chapel and sight-seeing attraction in Guernsey

A chapel in the Les Vauxbelets valley, Saint Andrew, Guernsey, made by Brother Déodat in July 1914.

Photo: Man vyi, Public domain

About Guernsey

The second-biggest of the Channel Islands, 27 miles (43 km) west of Normandy's Cotentin Peninsula. It is the largest island of the Bailiwick of Guernsey, which also has five other inhabited islands, Sark, Brecqhou, Jethou, Herm and Alderney, plus many small islets and rocks. The bailiwick has 63,950 people, the great majority on Guernsey, whose land covers 24 square miles (62 km²).

Officially The Bailiwick of Guernsey.

Based on the Wikipedia article, licensed CC BY-SA 4.0: the facts are Wikipedia's, the wording is this site's.

Questions travellers ask

What is worth seeing in Guernsey?

This guide lists 10: Les Casquets, Channel Islands, Guernsey and Lihou and others.

How were these places chosen?

By machine, from open data, with no human ranking them and nobody able to pay for a place on the list. Everything Wikidata records in Guernsey that is a building, a landform, a protected area or a tourist attraction, has coordinates, a photograph and an English Wikipedia article, is ranked by how many Wikipedia language editions wrote about it. Provinces, cities, airports, stations and stretches of sea shared with the neighbours are filtered out.

What language is spoken in Guernsey, and what currency?

English, French. The currency is GBP.

How do I get mobile data in Guernsey?

A travel eSIM is usually the cheapest way, and avoids a roaming bill. The plans suggested at the foot of this guide start at $5.01 for 1GB for 7 days. The eSIM is data-only and sits alongside your normal SIM, so calls, texts and WhatsApp keep working on your own number.

Which networks would my phone use in Guernsey?

Sure. Your phone picks whichever has the best signal where you are, the same way a local phone does.

One practical note: staying online

Maps, tickets and translation all want data, and roaming is the expensive way to get it. A Computatus eSIM eSIM connects to Sure once you land, and installs by QR code before you leave.

See 5 Computatus eSIM plans for Guernsey from $5.01
Prices as exported 2026-07-31. Tap a plan to open its order page.
Plan Data Valid Price Order
1GB for 7 days Cheapest 1 GB 7 days $5.01 Get it →
3GB for 15 days 3 GB 15 days $12.53 Get it →
3GB for 30 days 3 GB 30 days $12.62 Get it →
5GB for 30 days 5 GB 30 days $20.59 Get it →
20GB for 30 days 20 GB 30 days $60.48 Get it →

No app needed. Install by QR code before you fly, keep your own number for calls, and it connects the moment you land.

Sure 5G

Open the $5.01 plan →

A commission on plans bought through these links is what pays for this guide. Nothing above depends on it: the places are chosen before any price is looked up.