Yeah, Tecopa. I wound up going yesterday. It was great. The particular one we went to is owned by the sweetest couple (who made the trip worth it themselves) and is one of only a handful in the US that is legally exempted from using chlorine or bromine. The water doesn't feel like ordinary water. It has a velvet-like texture. Anyways, definitely a good experience and I highly recommend Tecopa Palms Therapeutic Hot Springs Resort.
RE: A nice simple day