Complex sentence: Timanfaya National Park or Parque Nacional de Timanfaya is a Spanish national park covering the municipalities of southern portion of Tinajo and the northern portion of Yaiza in the southwestern part of the island of Lanzarote.
Split into simpler sentences: Timanfaya National Park or Parque Nacional de Timanfaya is a Spanish national park covering the municipalities of southern portion of Tinajo and the northern portion of Yaiza. The park is located in the southwestern part of the island of Lanzarote.