Which is spain's smallest national park: Teide National Park, or Tablas de Daimiel National Park
Teide National Park Teide National Park (Spanish: "Parque nacional del Teide" , ] ) is a national park located in Tenerife (Canary Islands, Spain).
Arribes del Duero Natural Park Arribes del Duero Natural Park is a protected area in western Spain, covering 106.105 ha in the autonomous community of Castile and León. In this area the river Duero forms the national boundary between Spain and Portugal, and the Portugal side is also protected under the figure of International Douro Natural Park.