Las Ventanas de Güímar Tunnels & Cliff Windows in Tenerife – Photos, Access Notes and Safety Tips
Las Ventanas de Güímar is a striking water gallery carved into the cliffs above the Güímar valley in Tenerife. Workers cut a narrow canal and dozens of “windows” (ventanas) into the rock to ventilate the tunnels and remove spoil. Today the route is an exposed, unofficial hike that mixes forest tracks, rugged singletrack, tunnels and dramatic drop-offs. Below is a curated sequence of photos that shows what the terrain looks like, with short notes to help you evaluate if this adventure is for you.
Overview: the setting above the Güímar valley
The route runs high on the escarpment, hundreds of metres above the valley floor. On hazy days (calima) the views soften, but the depth of the ravines is still impressive.
Approach along the ridge: antennas and a small roadside chapel
A line of communications masts marks the ridge track used to reach the start area. This is a wide dirt road suitable for a careful drive or a relaxed warm-up walk.
Next to the masts stands a tiny white chapel—one of the few man-made landmarks here.
Beyond the installations, the approach continues on a forest track among Canary pines.
Soon the wide track gives way to a narrow path beside the historical water channel.
At the trail entrance, warning boards underline the exposure and rock-fall risk. Only continue if you are experienced, well equipped and conditions are stable.
Cliff-edge canal path
Sections of the canal are covered with concrete slabs. Where the slabs are missing you walk directly beside the channel, often with serious exposure.
At times the path runs right on the edge, delivering huge views over farms and villages far below.
Tunnels and the famous “windows”
Inside the mountain the gallery becomes a long tunnel. Carry a reliable headlamp and mind the uneven floor.
Some tunnels open briefly to the outside before continuing—great spots to pause and check footing.
Occasional “ventanas” open straight to the void; the drops are extreme. Keep a safe distance.
Looking across the ravine you can spot many of these windows aligned along the cliff.
Ravines, ridgelines and distant views
The landscape is a labyrinth of volcanic rock, gullies and vertical walls.
Dust in the air can mute the colours but adds a layered look to the ridges.
From the edge you can see much of the Güímar basin and the coastal plain.
Another viewpoint highlights the scale of the escarpment and its deep cuts.
Industrial relic on the slope
An abandoned excavator lies wedged beside the canal—rusting evidence of the hard work that created these galleries.
Vineyards and dry-stone terraces
Traditional terraces support vineyards on steep volcanic soil—typical agriculture in the Güímar area.
Close-up of the dry-stone retaining walls that hold these fields in place.
Planning & safety
- This is not an official tourist trail. Parts are exposed, narrow and unstable; rock fall is possible.
- Wear a helmet in the tunnel zones, take a headlamp with spare batteries, and avoid the route in rain or strong wind.
- Go with experienced company, tell someone your plan, and turn back if any section looks unsafe.
Conclusion: Las Ventanas de Güímar combines industrial heritage with raw volcanic scenery. If you enjoy challenging, technical mountain routes and respect the hazards, this dramatic traverse delivers unique views into the ravines above Güímar. Treat the place with care and leave no trace.