Las Grietas
Las Grietas is a volcanic fissure carved into the basalt rock of Lanzarote, offering a mineral landscape with black and ochre tones, away from the beaches and freely accessible.
Las Grietas is a spectacular volcanic fissure carved into the basaltic rock of Lanzarote, in the surroundings of Costa Teguise. This natural canyon, formed by lava retreat, reveals dark walls with ochre and black hues—a lunar landscape characteristic of the island. The site attracts hikers and geology enthusiasts for its raw forms and silence, far from the bustle of beach resorts.
What you'll see
The canyon presents itself as a long fracture in the volcanic ground, with vertical walls reaching several meters in height. The basaltic rock takes on varying hues—black, brick red, ochre—depending on the degree of iron oxidation. The bottom of the fissure is sometimes sandy or covered with small pebbles. Vegetation is virtually absent, accentuating the mineral and arid character of the place.
History and context
Las Grietas is the direct result of the volcanic activity that has shaped Lanzarote over millions of years. Fissures of this type form during the rapid cooling of lava flows: contraction creates linear fractures in the rock. Lanzarote, designated a UNESCO Biosphere Reserve in 1993, is home to many similar geological formations, evidence of volcanism that remains recent on a geological timescale.
Highlights of the visit
The basalt walls
The layers of rock exposed on the canyon's flanks allow you to read the history of successive eruptions. Each layer corresponds to a distinct volcanic episode, with different textures and colors.
The desert atmosphere
The absence of vegetation and the silence of the site create a particular atmosphere, akin to an extraterrestrial landscape. Raking light late in the day accentuates the reliefs and contrasts of the rock.
Photography tips
Late afternoon light is ideal: it brings out the warm hues of the basalt and creates pronounced shadows in the rock's crevices. Photograph from the canyon's edge to capture the depth of the fissure. Avoid midday, when vertical light flattens the reliefs. There are no known photography restrictions on this freely accessible natural site.
Location and access
Las Grietas is located in the volcanic zone of northeastern Lanzarote, near Costa Teguise. The site is accessible on foot from the road, without any particular reception infrastructure. Irregular terrain and crumbly volcanic rock make access difficult for people with reduced mobility. A vehicle is recommended to reach the starting point of the walk.
Nearby
- Costa Teguise — the nearest beach resort, with beaches and facilities.
- Jameos del Agua — volcanic tunnel designed by César Manrique, featuring an underground lake and endemic albino crab.
- Cueva de los Verdes — a remarkable volcanic cave part of the same lava tube system.
- Mirador del Río — a viewpoint designed by Manrique with views over the island of La Graciosa.
Frequently asked questions
The site is a natural space with free access, no ticket booths or reception facilities. No entry fee is required.
Sturdy hiking shoes with thick soles are essential: volcanic rock is sharp and uneven. Bring water and sun protection—the site offers no shade.
The site can be visited year-round. Spring and autumn offer milder temperatures for walking. In summer, start early in the morning to avoid the heat.
Yes. Jameos del Agua and Cueva de los Verdes are in the same northeastern zone of the island and can easily be visited on the same day by car.
The irregular volcanic rock and unsecured fissure edges require constant supervision. Not recommended for young children without close supervision.
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