Wonosobo is a small city encircled by mountains in the centre of Java and overlooked by Mount Sindoro.
My suggestion
It's not really necessary to spend time in Wonosobo being close to the Dieng Plateau, it's perhaps more preferable to stay there than at Dieng where the choice is very limited...
Flores and the Sunda islands in general are much less touristic that certain other destinations in Indonesia. Go there to enjoy an authentic adventure in the Indonesian archipelago.
A trip to Bali is a series of discoveries, spiritual, cultural, culinary and also of sports. Surfing is one of the attractive facets of the island. Bali with its varied beaches, of sand and of reefs, washed by warm turquoise waters, is a real surfing paradise. There are waves for all tastes and levels. So, hesitate no more and take the plunge!
Bali is a paradise on earth, and it's not for nothing that it's called the Island of Gods. You need to stay there for several days if you really want to appreciate everything it has to offer. This is a brief presentation of the things to see in Bali.
Catch nature unawares as she wakes up...or at least that's what it feels like when you are on the wonderful 2,329 metre high Mount Bromo, on the east of the island of Java. An absolutely spectacular and unforgettable moment. If you don't appreciate nature then don't bother!