6. HOYA MARINA/CUEVA CANALETA
|Drive out of Aliaga along the road to Teruel until you come to the Santa Bárbara district. You can park your car at the end of this district or go through the tunnel at the exit and park it 400 metres further on next to Canaleta Cave.
From the western tunnel entrance it can be seen the Hoya Marina coal mine, closed in 1964. Its name (‘marine hole”) is due to the abundant marine fossils existing in the limestones outcropping on the right side.
Next to the coal mine we reach Cueva Canaleta, a wide cave open into conglomerates and exhumed by river erosion in the past. A nice spring can be found within it.