The dramatic fissures of Montaña Blanca volcano have captured the imagination of social media users, with countless photos showcasing their awe-inspiring beauty and making them one of Lanzarote’s most photographed attractions
Known locally as ‘Las Grietas,’ this dramatic series of fissures and cracks is just one of Lanzarote’s many volcanic wonders. However, their popularity has skyrocketed thanks to countless social media selfies. Easily accessible from the LZ-35 road between San Bartolomé and Tías, the site is suitable for all ages, including older visitors and children.
These geological formations emerged as the lava from past eruptions cooled against the underlying rock, causing the ground to fracture. The resulting cracks exposed multiple layers of lava, each with a distinct hue, formed during successive eruptions that have taken place over the centuries.
Other cracks have been carved out due to erosion by rainwater, which has easily penetrated the soft sandstone. The three primary fissures that are accessible are situated on the side of the 600-metre-tall Montaña Blanca volcano.
The most striking formation is an extremely narrow, winding passage with uneven rock walls. This natural corridor extends for approximately twenty metres before reaching a dead end, so when visiting, you will need to retrace your steps as there is no other way out. The cavities are clustered together, separated by mere metres, with a deeper, more spectacular main chamber at the centre.
The site is easily accessible by car. Drive 1.3 kilometres along the LZ-35 road from Tías to San Bartolomé and look for a small, off-road parking area. Cross the nearby underpass and follow the trail uphill towards the mountain. After a short walk, the path leads you straight to the entrance.
Admission to the Montaña Blanca fissures is completely free, and the site is well worth a visit. It is important to remember that this is a protected geological site. Avoid climbing the side of the volcano. Not only is it harmful to the environment, but the soil is loose sandstone, which is dangerous underfoot. To fully enjoy your visit, wear sturdy footwear like trainers or hiking boots, bring water, and don’t forget sun protection.
