Adelaide is probably not the most exciting city on the planet, so the optional river cruise was probably the highlight.
The Barossa tour was pleasant, if a little long and Hahndorf was quite nice.
The driver was excellent, very well informed, and endlessly courteous, doing his best with the material
Very enjoyable. Versailles market was great, pleasant cycling in gardens. Scenic picnic lunch spot. Palace perhaps to awesome to fully take in. Stuart was a knowledgeable and humerous guide.