After their Earls Court shows (which are peppered with Robert Plant's bitter references to the tax man) Led Zeppelin's members split up to travel the world. Robert Plant, his wife Maureen, his children Karac and Carmen, and Jimmy Page's daughter Scarlet were in a car accident in Rhodes. The family was flown back to England for treatment and very shortly afterwards a still seriously-injured Plant was flown to Jersey in order to maintain his non-domiciled status in the well-known tax haven. For six weeks or so, Plant remained at the house of a millionaire lawyer colleague.
The album Presence was recorded shortly afterwards, with Plant still on crutches. More than one song on the album, particularly Achilles Last Stand, has been described as "intensely autobiographical". According to Mick Wall in When Giants Walked the Earth, Achilles went under Plant's working title of The Wheelchair Song" and blames the exile for what Mick calls their current malaise. One line refers to "the devil's in his hole".
Mick doesn't mention this, but the Devil's Hole is a place on the Jersey coast. (Jersey is historically French speaking and in French the cave is known as Le Creux de Vis, which I'm told translates to "the screw hole", rich in double entendres but probably just meaning borehole or awl-hole, right?) Plant can't have walked down to it, mostly because he couldn't walk but secondarily because the difficult passage down to it has been closed for years. The cave is a famous landmark featured on picture postcards, a blowhole where the waves have blasted a tunnel through the cliffs. A ship wrecked close by in 1851, and the figurehead washed up in the cave, resembling a devil. This was carved into the wooden figure of the devil by Captain Jean Giffard and remained there for many years during which tourists could pay to climb down the cliffs and visit him.
Since tourists are not supposed to go into the cave today, a devil figure – though he looks more like Pan to me – has been placed in a pond at the top of the cliffs at The Priory Inn. Here's an excellent picture, but since there are prints for sale, I won't reproduce it for copyright reasons. It's worth a click.
The whole verse in Achilles, however, doesn't appear to refer to Jersey.
Sending off a glancing kiss, to those who claim they know
Below the streets that steam and hiss,
The devil's in his hole
As a former Brit myself, I believe the image summoned up by "streets that steam and hiss" is of New York. There's a Devil's Hole State Park in upstate New York, but it's not below the streets of Manhattan!