✔ 最佳答案
I just go to 斯洛文尼亞 & 克羅地亞 this Easter.
Going from 克羅地亞 to 斯洛文尼亞 is easy by train and take few hours.
I like 斯洛文尼亞 and it is quite a beautiful country. Moreover, it has a very beautiful, and large 鍾乳洞. Don't miss that.
Also Lake Bled is also a nice place to go in Slovenia.
Austria is also good but it needs more time to travel from Croatia. Things to see is different from Slovenia. You will probably travel to Vienna & Salzburg in Austria. and need some time to travel between the cities. For Slovenia, you can just stay in the capital Ljubljana and travel daily trips to various places if interests.