The Lapua River is a river located in southern Finland. It flows through the region of Southern Ostrobothnia and is approximately 100 kilometers long. The river is known for its scenic beauty and is a popular spot for outdoor activities such as fishing and canoeing. The Lapua River eventually empties into the Lake Lappajärvi, which is one of the largest lakes in the area. The river and its surroundings are important for local wildlife and contribute to the region's natural ecosystem. The river also plays a role in the local economy, supporting tourism and recreational activities.