What about this article from AP, Monday, April 24, 1933, doesn't say wellness farm, but it also isn't very accurate. Was a cursory search of contemporaneous articles and that popped up, probably not impossible to find more with similar descriptions. Enough to at least understand the message at the time was much softer than reality.
> Some 18,000 Germans from all walks of life are being held in the political concentration camps in various parts of the country.
> Wilhelm Frick, Prussian minister of the interior, explains that they will be kept there until they become "fit citizens," reconciled if not converted, to the Nazi regime of Adolf Hitler.
> Sanitary conditions generally are described as excellent. There are doctors at each camp to care for the health of the inmates, and some of them report that the political prisoners are adepts [sic] at getting on morning "sick call."
> The physical culture includes morning setting-up exercises, football matches and similar group games. The manual labor is mostly tidying up the camp premises and barracks, but there are odd Jobs too, such as sewing or painting swastika emblems on confiscated Communist flags.
> Taeglische Rundschau sees political ideas of tomorrow coming from the concentration camps of today. Quoting a prisoner as saying "Sure we'd like to get out; but this is a good enough place to think things over," the paper comments:
[0] https://newspapers.ushmm.org/historical-article/1933-camps-u...
