"Spa Diversification
What makes a spa?"

http://www.bbc.co.uk/radio4/youandyours/listenagain/friday.shtml

Listen again to the latest programme...

The item is about 24 minutes into the recording.
it's in the 'health podcast' too (whatever that is).

Joanna

PS they still don't get it - if you ask the people who go there now,
what would they say other than they like it! Pity they can't bring
themselves to ask the people who don't go anymore...