Meet the Black Mountain business that’s booming thanks to cold water swimming

“Before I joined the Bluetits, if you’d said, ‘outdoor swim coach’, I would have immediately thought of triathlon, and that's not me at all,” she says. “Pretty much 99 per cent of the people I swim with are not about that either. We do it more for the wellbeing and the fun side of it, and for that reset. If you’ve had a bad day, you can go and get in the water and to be with lovely people and it really helps.”