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The Telegraph Podcasts.

I've been thinking a lot about a prison recently.

It's at the very edge of Louisiana, in a meander of the Mississippi River, a big sweeping bend that curbs for about 12 kilometres.

The bank of the rivers are bayou or swamp land and the region's known for crocodiles,

crawfish and a slow pace. The prison's an outpost in this precarious land. When hurricanes come in,

the levees can give way and before you know it, the whole area's underwater flooded with disease and fear.

To get there, you drive down Louisiana's Route 66.

This isn't the famous artery, but a single-track road with big cracks in it,

and it stops suddenly.

What looks like a crossroads is for most people just a dead end.

You need official authorisation to go any further.

A sign warms, if you enter the white gates ahead,

you could be inspected by trained dogs, or have your body cavities searched.

If it all sounds too much, you can take a quick right

and visit the prison's museum instead.

There you'll see its notorious

travelling electric chair

and hear terrifying stories

like the time a group of inmates

slashed their Achilles' tendons

...