
Green Spain is the name given to a lush natural region in Northern Spain, stretching along the Atlantic coast from the border with Portugal to the border with France.

The Asón-Agüera comarca is a historical region of Cantabria, Spain. It is located in the upper courses of the Asón and Agüera rivers, near the border with Vizcaya in the Basque Country. The comarca encompasses the basin of the Asón river and its tributaries such as the Gándara.

Asturias, officially the Principality of Asturias, is an autonomous community in north-west Spain. It is coextensive with the province of Asturias and contains some of the territory that was part of the larger Kingdom of Asturias in the Middle Ages. Divided into eight comarcas (counties), the autonomous community of Asturias is bordered by Cantabria to the east, by León to the south, by Lugo (Galicia) to the west, and by the Bay of Biscay to the north.

The Basque Country, officially the Basque Autonomous Community is an autonomous community in northern Spain. It includes the Basque provinces of Álava, Biscay, and Gipuzkoa.

The Bay of Biscay is a gulf of the northeast Atlantic Ocean located south of the Celtic Sea. It lies along the western coast of France from Point Penmarc'h to the Spanish border, and the northern coast of Spain west to Cape Ortegal.
The Bay of Santander is both a comarca of Cantabria and the largest estuary on the North coast of Spain, with an extension of 22.42 km2. Due to the influence of Santander and its metropolitan area, nearly half of the population of the autonomous community of Cantabria is gathered around it, which makes the anthropic pressure on this area of water quite notable.
The Besaya valley is both a comarca located in the center of Cantabria, along the course of the Besaya River, and the natural valley of said river. Its capital is Torrelavega.

Campoo is a comarca of Cantabria (Spain) located in the High Ebro, with a surface little bigger than 1,000 km2, and including the municipalities of Hermandad de Campoo de Suso, Campoo de Enmedio, Campoo de Yuso, Valdeolea, Valdeprado del Río, Valderredible, Reinosa, Las Rozas de Valdearroyo, Santiurde de Reinosa, Pesquera, and San Miguel de Aguayo. Their inhabitants are called Campurrians . Its highest elevation is the Cuchillón peak, and the lowest is Pesquera, with the capital, Reinosa at 850 m.

Cantabria is an autonomous community in northern Spain with Santander as its capital city. It is recognized as a historic community and is bordered on the east by the Basque Autonomous Community, on the south by Castile and León, on the west by the Principality of Asturias, and on the north by the Cantabrian Sea.

The Cave of Altamira and Paleolithic Cave Art of Northern Spain is a grouping of 18 caves of northern Spain, which together represent the apogee of Upper Paleolithic cave art in Europe between 35,000 and 11,000 years ago. In 2008, they were collectively designated a World Heritage Site by UNESCO.

Costa da Morte is part of the Galician coast. The Costa da Morte extends from the villages of Muros and Malpica.
The Eastern Coast of Cantabria is a comarca in the autonomous community of Cantabria, northern Spain, that comprises the municipalities of Colindres, Laredo, Liendo and Castro Urdiales.

The Font Roja Natural Park is a natural park situated in Alcoy, in the autonomous community of Valencia, Spain.

Galicia is an autonomous community of Spain and historic nationality under Spanish law. Located in the northwest Iberian Peninsula, it includes the provinces of A Coruña, Lugo, Ourense and Pontevedra.

Gaztelugatxe is an islet on the coast of Biscay belonging to the municipality of Bermeo, Basque Country (Spain). It is connected to the mainland by a man-made bridge. On top of the island stands a hermitage, dedicated to John the Baptist, that dates from the 10th century, although discoveries indicate that the date might be the 9th century. With another small neighboring island, Aketx, they form a protected biotope that extends from the town of Bakio until Cape Matxitxako, on the Bay of Biscay.

Liébana is a comarca of Cantabria (Spain). It covers 575 square kilometres and is located in the far southwest of Cantabria, bordering Asturias, León and Palencia. It is made up of the municipalities of: Cabezón de Liébana, Camaleño, Cillorigo de Liébana, Pesaguero, Potes, Tresviso and Vega de Liébana.
The Serra Mariola Natural Park is a mountain range in the Valencian Community, Spain, one of the most peripheral offsprings of the Baetic System. Most of its territory is included in a natural park founded in 2002, covering an area of 17,257 ha.

The Picos de Europa are a mountain range extending for about 20 km (12 mi), forming part of the Cantabrian Mountains in northern Spain. The range is situated in the Autonomous Communities of Asturias, Cantabria and Castile and León. The highest peak is Torre de Cerredo, at an elevation of 2650 m (8,690 ft).

The Picos de Europa National Park is a National Park in the Picos de Europa mountain range, in northern Spain. It is within the boundaries of three autonomous communities, Asturias, Cantabria and Castile and León, which are represented on the body which runs the park. The park is also a popular destination for hikers and trekkers.

The Pyrenees is a mountain range between Spain and France. Reaching a height of 3,404 metres (11,168 ft) altitude at the peak of Aneto, it extends for about 491 km (305 mi) from its union with Cantabrian Mountains to the Mediterranean Sea.

Rías Altas is the northernmost of three sections of A Costa do Marisco in Galicia, Spain. It extends from the port of Ribadeo to Santa Cruz.

The Rías Baixas are a series of four estuarine inlets located on the southwestern coast of Galicia, Spain. They are the Ría de Muros e Noia, the Ría de Arousa, the Ría de Pontevedra, and the Ría de Vigo. The northernmost Rías Baixas begin below Cape Finisterre while the southernmost rias border the Portuguese coast, taking up the southern part of the Province of Coruña and the entire Province of Pontevedra. Its capital is the city of Pontevedra. Due to unique conditions, the Rías Baixas are rich in marine life which helps the fishing and aquaculture industry of the area. Beaches, marinas, distinctive towns, and plenty of water activities also attract tourists, providing another source of income.
The Valleys of the Saja and Nansa Rivers comprise an administrative comarca in Cantabria, Spain. It is formed by the valleys of said rivers, each one being a natural comarca of its own.

San Glorio is a mountain pass in the Cantabrian Mountains of Northern Spain. The pass reaches an elevation of 1610 meters along the national highway N621 which connects the city of León with Cantabria and which passes through Asturias. The pass is situated some 800m from the southern border of the Picos de Europa National Park, a park included in UNESCO's World Network of Biosphere Reserves and shared by the provinces of León, Asturias and Cantabria. The valleys of this part of the Cantabrian Mountains include sites in the European Union's Natura 2000 network and Special Protection Areas for the conservation of wild birds. San Glorio is used as a corridor by the Cantabrian brown bear Ursus arctos, catalogued in Spain as being in danger of extinction. Moreover, the slopes of the glacial valleys making up the surrounding region are home to an important variety of plant life.

Sierra de la Demanda is a mountain sub-range situated in the northern Iberian Peninsula.

Trasmiera is a historic comarca of Cantabria (Spain), located to the east of the Miera River, reaching the western side of the Asón. It extends between the bays of Santander and Santoña, occupying most of the Eastern seaboard of Cantabria. This piece of coast is known for its cliffs and fine beaches, such as those of Langre, Loredo, Isla, Noja and Berria. Towards the interior, the comarca offers large prairies as well as considerable hotel and camping development.
Valles Pasiegos is an administrative comarca in Cantabria, Spain. It is formed by the valleys of the Pas and Miera rivers, each one being a natural comarca of its own.
The Western Coast of Cantabria is a comarca of said Spanish autonomous community which comprises the municipalities of Val de San Vicente, San Vicente de la Barquera, Valdáliga, Comillas, Udías, Ruiloba, Alfoz de Lloredo and Santillana del Mar.