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Friday, June 19, 2026

Volcanic rock in Tenerife - what it does for you

 



The chatty waiter in the pergola restaurant in the El Mirador (The Viewpoint) hotel brought these pieces of rock to the dinner table to show to us.

We were discussing what is different about Canarian wine and food. The Canary islands grow bananas, small, sweet bananas. You will notice the covers to protect the green plants with huge leaves from the strong gusts of Trade Winds. The strong winds blow in from the ocean, tossing your clothes and hair, and pushing the clouds overhead. You'll see the surfing boards in the shops and the drifting paragliders over the ocean.

The Canary islands also grow small wrinkled potatoes. Also large tomatoes, served at breakfast and other meals, thinly sliced.

The black rocks have several advantageous functions. The black rocks are porous so the rain sinks through them to the earth beneath. The rocks on top hold the earth in place, which might otherwise blow away.

Black And Red Rock
Most of the cliffs and beaches and paths in Tenerife are black volcanic rock. Some red rock. But also some pale sand beaches.

Pale Sand
The pale sand beaches below the hotel and elsewhere were originally created by a king from Africa who sent over ships full of sand.

Beach Barriers
The Atlantic Ocean here has strong currents. That explains the rock barriers out în the water around the beaches.

The rock barriers have two functions. The barriers protect swimmers from strong currents. The barriers also save the sand from being swept away.

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