Any less known vacation spots?

My girlfriend and I are looking for less known vacation spots, but equally beautiful as the more popular. It's just that the lesser discovered have yet to have a thousand people there when you want to relax and enjoy the silence. It's hard to concentrate having a hundred people in every direction. We were thinking of somewhere in Asia since we're here already because of this marriage tours in Thailand. I just want to relax the rest of my vacation with my girlfriend before I head home since we're not going to be seeing each other in person for a while. Any suggestions?