Castro-Urdiales is located on the northern coast of Spain in the province of Cantabria, making it a quintessential coastal destination. The city lies along the shores of the Bay of Biscay, offering sweeping views of the sea and easy access to beautiful sandy beaches. Its proximity to other major cities in the region, such as Bilbao (just 35 kilometers away) and Santander (about 75 kilometers away), makes it well-connected and convenient for visitors arriving by road or public transport.
The city’s natural surroundings are just as appealing. Castro-Urdiales is framed by the mountains of Cantabria to the south and the Bay of Biscay to the north, offering a combination of coastal and mountainous landscapes. The nearby Picos de Europa National Park is a must-see for nature enthusiasts and hikers. In addition to its beaches, the area is also home to rugged cliffs and scenic trails.
Castro-Urdiales enjoys a temperate oceanic climate, characterized by mild summers and cool, damp winters. The best time to visit is typically between late spring and early autumn (May to October), when the weather is warm, but not overly hot, making it perfect for sightseeing, beach activities, and outdoor events.