One of my favorite places we visited in Indonesia was the pond at Dusun Bambu in Lembang, with little huts around it. My impression was that you could eat lunch in those huts. I don’t know if you could camp overnight there.
There’s two things Indonesian’s can out-do Americans at, in my humble opinion. Malls and restaurants. Here’s a few places we ate at near Bandung on Java.
Here are a couple photos I took a few years back on my trip to Indonesia, where my wife grew up. My job prevents me from traveling far or long, so any photos I have from overseas are like treasures.