The Chaparro de la Vega is a magnificent 13m-high holm oak, measuring 30m in diameter in its entirety and having an estimated age of 700 years. The tree provides shade during the pilgrimage of Coripe villagers for the fiesta of Coripe's patron saint, the Virgen de Fátima.

Situated in the Sierra Norte de Sevilla Natural Park near the village of San Nicolás del Puerto is the Cerro del Hierro (Iron Hill). As well as being a former Roman mining site, the Cerro del Hierro is noteworthy for its limestone features, among the most outstanding in Andalucia, which include chasms and gullies. Its unique microclimate means that there are some interesting plants.

Within the Sierra Norte de Sevilla Natural Park are these impressive waterfalls (cascadas), which are 7m tall at their highest point. The waterfalls are situated close to the source (nacimiento) of the Huesna river, the biggest watercourse in the Sierra Norte park. The banks of the Huesna river are densely populated with elms, willows, poplars and alders, inhabited by many birds, while otters live in the river.

The seasonal saltwater Laguna del Gosque provides an important back-up for birds in the nearby Laguna de Fuente de la Piedra Natural Reserve. Thousands of flamingos breed in the Fuente de Piedra, so they are also a common sight at this reserve.

Utrera Natural Reserve contains three saltwater lakes. Laguna de Zarracatín is around ten times the size of the other two, Laguna Arjona and Laguna Alcaparrosa. The lakes and their protected environs cover 1,161ha. Like the Lebrija-Las Cabezas Natural Reserve, it provides an alternative habitat for birds in the nearby Guadalquivir delta. Birds from the Embalse Torre del Aguila, which is about 3km east, also use the reserve.

A total of six lakes make up this 949ha reserve: Pilón, Taraje, Cigarrera, Peña, Galiana and Charroao, in order of size with Pilón being the largest. The Laguna del Taraje is the only lake with water in all year round. These six lakes are the only ones left of a much bigger series of lakes that used to occupy this area around the Seville/Cadiz provincial border, which have dried up due to increasing irrigation for agricultural activities.

East of Seville is this wetland reserve, comprising two saltwater lakes: Laguna de Calderón and Laguna de la Lantejuela. Until the mid-1960s, this wetland area covered an area of 300km² stretching between Écija and Osuna; today, only a fraction of this remains, including the 956ha of the Lantejuela reserve.

The Brazo del Este is located 20 km south of Seville in the Guadalquivir river estuary, which is an area with one of the highest levels of biodiversity in the Iberian peninsula. This former branch (brazo) of the Guadalquivir is east (este) of the river and is now a reed-fringed lagoon and wetland area surrounded by rice plains and farmland.

Located in the northern section of the Paraje Natural Marismas del Odiel, this 597-hectare nature reserve is made up of marshland and creeks.

Situated in the heart of the Paraje Natural Marismas del Odiel, the 480-hectare Reserva Natural Isla de Enmedio can be found where its name suggests, in the middle of the Odiel nature reserve. The isla (island) is in fact a series of islands, created by tidal activity in the Odiel estuary, and is made up of saltwater marshes.

Seven kilometres from Punta Umbría is the small resort of El Portil, with its 13-hectare reserve of a small freshwater lagoon, the Reserva Natural Laguna de El Portil. The reserve is most well known for its population of chameleons.

The Paraje Natural Sierra Pelada y Rivera del Aserrador is the third largest protected area in Huelva Province. Located in the foothills of the Sierra Morena close to the Portuguese border, it covers 12 sq km of wooded hills south of Aroche and is also just south of the Parque Natural Sierra de Aracena y Picos de Aroche.

This 718ha area southwest of Aroche is a little-visited protected area due to its relatively remote location and rough forestry tracks leading to it. It can be reached via the dirt road that links Aroche with the sparsely populated hamlet El Mustio, that gives access to the Paraje Natural Sierra Pelada.

It is situated west of Huelva, around the minor resort and fishing village of El Rompido. The Piedras river has formed an estuary surrounded by marshlands. Where the river meets the Atlantic Ocean a long sandy spit has formed, called the Barra or Flecha del Rompido.

The Paraje Natural de las Marismas del Odiel is the second most significant wetland reserve in Andalucía after the Parque Nacional de Doñana. This large estuary and marshland of the Odiel and Tinto rivers covers 72-sq-km between Huelva City, Punta Umbría, Gibraleón and Aljaraque. It was granted protected status in 1989. The best time to visit is in spring during the breeding season and in winter when there are lots of waterfowl.

The marshland nature reserve of the Marismas de Isla Cristina is situated between the northern edge of Isla Cristina village and the Carreras estuary to the east and Ayamonte and the Guadiana estuary to the west. Within its 2.1 sq km is a variety of habitats and an impressive range of birds.

Part of the Paraje Natural Marismas del Odiel, the Lagunas de Palos y las Madres covers 693 hectares and consists of four lagoons: La Jara, Las Madres, La Mujer and Palos. They are the remains of what once was a nearly continuous line of coastal lagoons linking the marismas at the Odiel-Tinto confluence and those at the Guadalquivir estuary.

Part of the Paraje Natural Marismas del Odiel, the Estero de Domingo Rubio is situated seven kilometres south of Huelva city near the La Rábida monastery. The Estero is a creek that runs south of the monastery into the Odiel/Tinto estuary. The protected area of the Estero covers 480 hectares. It is bordered by saltmarshes and mudflats at the estuary end and freshwater marshes further upstream. Also at the upper end is a freshwater lake.

Just outside of Punta Umbría is an area covering 162 hectares of protected beach, sand dunes and woods, including a juniper grove, one of the few examples of this type in Andalucía. The 50-m wide beach, with fine, golden sand, stretches for 2.3km.

Close to the Andalucia-La Mancha border and the Despeñaperros Natural Park are a series of magnificent waterfalls (cascadas), making a total protected area of 534ha. On the Guarrizas river, the waterfalls spill over an impressive, sheer wall of quartzite rock, 50m tall at its highest point of Cascada de la Cimbarra.