The natural wealth of Carvao Cave lies in its great diversity in the geological aspects, structures and phenomena that are usually caused by volcanic activity. These features include structures known as “gas bubbles”, which are represented by the explosion of some sections of the cave walls under the influence of accumulated gases or the presence of cracks in the walls and ceiling caused by The cooling of the lava flow, and countless stalactites can be seen in the ceiling of the cave: some of them are conical and have a smooth surface resulting from the hardening of the lava droplets; Others are irregular in shape, white in color and very brittle, resulting from the change and sedimentation of the water that has seeped into the cave.