- Sliac is a town located in central Slovakia. It is part of the Banská Bystrica Region and lies in the Hron River Valley. Sliac is known for its mineral springs and spa tourism, attracting visitors seeking relaxation and wellness treatments. The town is also surrounded by beautiful natural landscapes, offering opportunities for outdoor activities such as hiking and cycling. Additionally, Sliac is home to the Sliac Air Base, which played a strategic role during World War II and now serves as a military training facility.