The Douro is a river located in the northern part of the Iberian Peninsula, flowing through Spain and Portugal. It is known for its stunning landscapes, characterized by steep terraced vineyards that produce the famous Port wine. The river stretches approximately 897 kilometers, making it one of the longest rivers in the region. The Douro Valley, a UNESCO World Heritage site, is renowned for its picturesque scenery and rich cultural heritage. The river plays a crucial role in the local economy, supporting agriculture and tourism. Visitors can enjoy boat trips along the river, exploring charming towns and tasting local wines.