 The interior is plastered and painted blue, encircled granite base and sections defined by pilasters where iron structures that support that roof are affixed, lined with wooden lathes painted in blue.The main doorways are in the east, north and west preceded by three ample stairs with iron guardrail and ceramic flooring.In the centre of the building is the primitive "buvette" thermal spring recessed into an octagonal plan with similar pavement, and protected by iron grate, painted green (with faceted basins on angles).