from switzerland to greece

only 3 months to go, and we have a rough itinerary. should look something like this - SWITZERLAND zurich bern luzern ticino valais FRANCE paris loire valley marsille montsegur montpellier cannes nice MONACO ITALY florence tuscany rome bari CROATIA dubrovnik split istria ITALY venice SLOVENIA bled ljubljana AUSTRIA veinna salzburg CZECH REPUBLIC prague SLOVAKIA HUNGARY budapest MONTENEGRO SERBIA KOSOVO ROMANIA transylvania GREECE crete santorini athens