I like hot springs and I like to soak in the hot spring water.
But by looking at the Termas de Chaves website, they only lists treatments/therapy options. They all seem to be a treatment for short period of time (20 minutes, 30 minutes, 45 minutes etc.). They seem to be a medical treatment facility.
Is it possible to just soak in a pool or tub there to relax for an hour or two ?