Las Grietas

Perched on the slopes of Montaña Blanca volcano between the villages of Tías and San Bartolomé, Las Grietas (The Cracks) is a mesmerizing geological wonder showcasing Lanzarote’s fiery volcanic past. This series of dramatic fissures—reaching up to 600 meters in height—slices through ancient lava flows, revealing layered rock strata in narrow, slot-like canyons that evoke a mini Grand Canyon or Antelope Canyon. Formed by the contrasting cooling rates of overlying lava and underlying rock during eruptions thousands of years ago, these cracks offer a raw, otherworldly glimpse into the island’s turbulent history, with stunning sea views toward Puerto del Carmen peeking through the gaps.

A Volcanic Legacy

Lanzarote’s landscape is a testament to its explosive origins, and Las Grietas stands as a prime example. The fissures emerged when superheated lava from prehistoric eruptions cooled rapidly on the surface while the base contracted more slowly, creating deep fractures in the earth. Part of the island’s broader volcanic tapestry—alongside Timanfaya National Park and La Geria’s vineyards—this site remains one of Lanzarote’s lesser-known treasures, drawing adventurers and photographers seeking solitude amid the black basalt expanses. Local authorities have recently enhanced protections, including geological studies and awareness campaigns, to preserve its fragile beauty for future explorers.

Exploring the Site

From the informal dirt parking area along the LZ-35 road, a short 5–10 minute uphill walk (about 500 meters) leads to the main entrance. Wander narrow passages—some just wide enough for one person—for 20 meters or so, marveling at the smooth, curved walls and layered lava hues of red, black, and ochre. The highest canyon rewards with panoramic coastal vistas, while smaller cracks branch off for added discovery. Though accessible, some areas involve light scrambling; sturdy closed-toe shoes are essential, as the terrain can be uneven and slippery.

Best Time to Visit

• Early morning or late afternoon for cooler temperatures, softer light, and fewer crowds
• Spring or fall to avoid peak summer heat
• Pair with nearby La Geria vineyards or El Cuervo volcano for a full volcanic day trip

Practical Info

• Free entry with roadside parking (look for the left-side spot near coordinates 28.9732341, -13.6356435; the right-side lot is closed for safety)
• Easy access from Arrecife Airport (15–20 minutes by car) or Tías village
• Family-friendly for older kids and fit adults, but not ideal for very young children or those with mobility issues due to uneven paths—wear appropriate footwear and bring water
• Stay on marked trails to protect the site; no facilities on-site, so pack snacks and respect the no-trace policy
• Allow 20–45 minutes for a leisurely visit, longer if photographing or hiking deeper fissures

In the stark drama of Lanzarote’s lava fields, Las Grietas invites you to step into the island’s beating heart—a quiet rift where earth’s ancient fury meets serene coastal horizons.