Descend into a German-built WWII fuel tunnel carved deep beneath St. Peter Port, then emerge to one of Guernsey's most magical natural bathing pools — a single visit that spans wartime shadow and sun-drenched leisure.
What to expect
The tunnel was blasted from solid rock by forced labourers under Nazi orders to store U-boat fuel — walking its length today, lined with original German vehicles, weapons, and occupation artefacts, is a genuinely spine-tingling experience. The museum's curators are passionate and the collection is outstanding for its size. Stepping out into the sunshine, you'll find La Vallette's tiered sea-water bathing pools perched above the Channel — a Victorian gem still used by locals for wild swimming and contemplative sea-gazing. The contrast between the darkness of the tunnel and the luminous sea outside is unforgettable.
Good to know
A pleasant 15-minute walk or short taxi ride from the cruise pier along the seafront promenade. The tunnel is cool (bring a layer) and can be dimly lit. Combine with a morning swim at the pools for the perfect half-day. Check seasonal opening hours on the official website.
Sail there
Luxury cruises that call at St. Peter Port (Guernsey) — book through us, the fare is identical and your concierge stays on your side.