Sky and rock

Here's an artificial rock cliff. These huge rocks keep the sea at bay in Latsi and are used to create an artificial harbour where there was none before.

The harbour wall doesn't need to be very big. The Mediterranean has a very small tidal range and acts more like an inland sea than an ocean. 

In fact tidal range is more to do with the shape of the land and the sea bed. The Severn estuary has a huge tidal range (a natural resource that we seem determined to ignore). The sea is trapped between Wales and Devon, and the sea bed shelves upwards forming a large underwater funnel. 

Tenerife does not have such a large tidal range despite being in the Atlantic, because the underwater topography doesn't cause it.



Now here is a completely natural cliff, complete with sea caves. Excellent.


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