The Ipoly River is a river located in central Europe, primarily flowing through Hungary and Slovakia. It is approximately 128 kilometers long and serves as a natural border between the two countries for part of its course. The river is a tributary of the Danube River, contributing to the region's water system. The Ipoly River is known for its scenic beauty and diverse ecosystems. It flows through various landscapes, including forests and agricultural areas, providing habitats for numerous plant and animal species. The river is also popular for recreational activities such as fishing and kayaking, attracting both locals and tourists.