Hi Jaya, the Danube Wine Experience! It looks a wonderful trip, staying in a five star chateau with its own vineyard plus visits to Budapest and Bratislava. I was in Budapest many years ago, but I've never been to Bratislava and it looks very picturesque.
I am very envious of your extended Australia trip next year - I hope JY offer this in future years as I want to do Australia in 2020 when I have a big birthday!
All the best,
Bob