While great white sharks might appear on the coasts of Portugal, there have been almost no sightings, even in deep waters.
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The 1755 tsunami was not an unprecedented event. In fact, there are references to tsunamis caused by other earthquakes which hit the Algarve. A few years earlier, in December 27th, 1722, there was also a tsunami although its effects were only felt locally (SOUSA, 1915).
Praia dos Coelhos, SétubalThe setting for innumerable films and advertising campaigns, this idyllic, secluded beach on the Arrábida coastline boasts some of the clearest waters you'll likely ever swim in. Though increasingly on the tourist trail, it's still relatively crowd-free.
The Portuguese coastline – along with the coastlines of California, South Africa, Western Australia and Peru – is subject to a phenomenon known as upwelling. In simple terms, if the wind blows parallel to the coast, then water from the bottom of the ocean (cold and rich in nutrients) rises and comes to the shoreline.