It's more difficult because there are no direct flights, no trains... when I came to Slovenia last time I used Flixbus 😁
Yeah, Bibione, you wrote it correctly. I have never been there, though.
I don't know that area so well, honestly, I just visited Venice, Padova, Verona and Trieste, and traveled across the region a couple of times.
I'm not the best person to give you a help, but I would love to. What would you like to see the most?