I visited Bali just for a long weekend with some of my coworkers and students while working in east Java. We spent our time swimming at the beach and exploring the area of Kuta, where we stayed, by foot.
The culture in Bali seemed quite a bit different from what I had seen in Java. I think that one major part of this has to do with the religion. In Java, the predominant religion is Islam, whereas in Bali it is Hinduism. Another big change was the amount of tourists - Bali was filled with so many foreigners, whereas I am the only foreigner in the little town where I am currently living in Java.
After a relaxing weekend, we took the ferry to Java island, and then had a road-trip back to the little town where we work.
On the way back, we stopped at the home of one of our former students, who had "graduated" just a few days after I began working at the English school. She and her family graciously invited us into their home and fed us a delicious dinner.
Bali was fun for a weekend-getaway, but it felt very touristy (I think especially in the area of Kuta, where we were,) so I was happy to be back "home" in our little farm village on Monday morning :)