Erlengarria II

From the facilities of the recreation area of the Leurza reservoirs, head toward the dam of the second reservoir along a track in a southwesterly direction, following the left-hand one after the fork. Once past the dam, take the track on the right that skirts the upper reservoir, crossing the river of the pacedero Erlengarria 13, until reaching a new ascending track on the left. Following this, one arrives at a change of direction to the right, which leads to marker 37. Once at the marker, continue along the track, ignoring on the left a steeper path, for about 120 metres. From here ascend until reaching the limit of the karst, which can be glimpsed on the left. After ascending about 25 metres more (in height), the entrance of the cave is found in a limestone outcrop, and at the contact between the reef limestones and the sandy marls of the Lower Cretaceous.