not a bad deal
Self promotion - I got told off for doing this.
I'd heard of salt caves before, but hadn't realised there were any nearby for me. My son is a severe asthma sufferer and also suffers with eczema so i'm deffo up for this, and i see that supervision of a child is free for the adult. They may even know more on the salt pipes i'd been tempted to try too.
A bit of research shows there is some validity for this with positive trials with people with cystic fibrosis and asthma , though clinical trials often used nebulized salt inhalation versus salt caves, but there seems like there is some good evidence. http://www.salinetherapy.com/html/research___studies.html