River Arachthos is a significant river located in northwestern Greece. It flows through the region of Epirus and is known for its picturesque landscapes and rich biodiversity. The river originates from the Pindus Mountains and eventually empties into the Ambracian Gulf. The Arachthos River is approximately 110 kilometers long and is popular for various outdoor activities, including rafting and kayaking. Its waters are characterized by a mix of calm stretches and challenging rapids, attracting adventure enthusiasts. The surrounding area is also home to several historical sites and natural attractions.