The Health Hydro is housed within a lovely Victorian building in the centre of Swindon, Wiltshire.
It boasts a 33m four lane swimming pool, a gym, a Natural Health Clinic offering a unique combination of therapies from qualified practitioners and the oldest constantly open Turkish Baths in Britain.
If it looks more like a railway building than a swimming baths that is no coincidence.
It's all in red brick, in a stripped-down Queen Anne style, and was designed by local architect JJ Smith, and opened in 1891. It was one of the most modern facilities of its time, pre-dating integrated health centres.
And all was paid for by the workers of the Great Western Railway through their Medical Friendly Society. Compulsory deductions were made from their wages, but in return they were well looked-after. It was like the NHS on a mini-scale so no wonder it was taken over by the NHS after the war.
The pool and changing rooms were modernised in 1963, and again in the 1980s. But the 1963 modernisation was done with some quality materials: there are nice granolithic cubicles in the changing rooms, and the poolside walls were lined with granolithic when the poolside changing cubicles were removed. It's pleasingly solid.