Did you know that you can listen to many of your favourite podcasts first on BBC Sounds?

Like Desert Island Discs, where you can hear castaways like Cher, Gareth Southgate and Nick Cave,

and enjoy longer versions of the music they've picked. Good things come to those who don't wait.

Listen to your favourite podcasts first on BBC Sounds.

This Scotland Outdoors podcast from BBC Radio Scotland.

Hello and thanks for choosing to listen to this.

I'm Rachel Stewart.

In this podcast, I go on a tour of a secret nuclear bunker in Dundee. Now, for many years, few people knew of its existence,

but the Royal Observer Corps' 28 group and sector bunker would have been on the front line

had there been a nuclear attack in the UK.

For more than a decade, a group of dedicated volunteers called 28 Group Observed

have been restoring it and today it's one of the most authentic nuclear bunkers of its type in the country.

Mike Scott and Gavin Saxby showed me round. authentic nuclear bunkers of its type in the country.

Mike Scott and Gavin Saxby showed me round.

Good morning.

Hello. I've come to the right place.

Yes, you have. This is a 28-group headquarters bunker.

Now, I'm very excited. I have to say, and don't take offence at this, it doesn't look particularly impressive from the outside,

but you tell me I'm about to be amazed.

Yes, you certainly are.

Fantastic. Well, you're going to take me on a tour, aren't you?

Absolutely, yes, right.

...