Most of us pretty adamant independent travelers.  These three cities are all “normal tourist destinations” so arrangements are no more difficult than in the rest of Europe.   We visited these three cities by train using Vienna as a hub.

You could certainly do this on a tour although I’m not aware of any tours that hit just these three cities.  Most tours miss Bratislava —opting for nearby Vienna instead.

Thanks oldlady – I thought rail would be the best option but just wanted to run it by someone more experienced in this than myself!
 
Thanks again.