A considerable number of caves have been found in Amoroto, including important remains.
The Abitxa cave is located in the Ugaran district near Oleta. It is especially located within the Lea-ibilbidea route. That is, in the section from Oleta to Gizaburuaga. It became known in 1929. It is a very important cave because of its archaeological, historical, biological and speleological interest. Herds of bats live there. A kind of bats that are about to disappear. As far as speleology is concerned, in 1999 new galleries were found. The largest gallery is 15 metres high on the highest peak. In the second Carlistada it can be said that it was quite an important place. The cave of Abitxa is closed for security reasons but if you want to visit it, you can ask for the key to the entrance in the Town Hall of Amoroto.
Pepetxo Cave is located in the Urrutia neighbourhood. There are six caves located in an area called Atxurra. This cave has left a great historical and artistic value.
A little further down from the previous cave, we find the cave known as Pepetxo III. In this cave there have also been found interesting traces such as limpets, magpies, ochre chunks that indicate that human beings lived in this place.
The Caves of Armiña and Atxurra, underground cavities situated between the hamlets of Armiña and Atxurra, have been the object of study for approximately 130 years. Paleontologists and archaeologists refer to its upper mouth as “Atxurra”, and its lower mouth as “Armiña”.
Although there are many caves in Amoroto, it can be said that no human traces have been found in all the caves, although they are of great importance with respect to archaeology. Some of these are the following; Pepetxo II, Pepetxo IV, Armina, Goiogana I, Cave of the surroundings of Atxurra and the cave of Asubita.