Clifftop bunker site with views towards Sangate and Calais
Wn109a Altona site overview
What to see
Standing to the north of the large Stp109 Dusseldorf radar and observation complex is Wn109a Altona, a much smaller site featuring just a handful of bunkers.
Here you can find a series of Vf2a personnel shelters, a water storage reservoir, and the remains of a barracks block, along now close to the cliff edge and fenced off to the site of the coastal path.
The standout building here though is the R612 casemate – now sealed up and overgrown – and you can get an amazing view along the coast towards Calais from its embrasure.