Sibulan mainly. There are a few hidden around Dumaguete as well, though they are more designed for the local clientele. They are all rather disgusting and run down places. I think there was a new one that just opened in Sibulan but I'm not sure on that...the owner was rather cryptic about their business model when he was telling me about the place. Could be a proper club, a brothel or a combination of the two. I believe Fantasy was the name.