It is inviting indeed... but 17 Centigrades is not very pleasant !
The Portuguese name for this beach is "Praia da baleeira"
"Baleeira" is the life-boat word derived from "baleia" or whale.
Let's think this way: When fishermen wanted to go chasing whales they went into a boat. And that boat was not a common one but a specific.
It is the whaling-boat ! Found the right name for it
The beach is "The Whaling-boat beach"
Along the coast there was many sites where fishermen were capturing fish and whales when they were available at the beginning of the XXth century.
As time went by and with the increase of the exploitation of the seas the whales most probably pass too far away these days.
In the early years this area was very rich in fish, but now...
Fishermen used to "camp" in this beach for some period of the year and when there were no whales, they moved to the countryside to farm.
To get there it was not an easy walk. Many rocks on the way and a great slope !
The map bellow is from 1561
Far bellow another shot from the same location and near the last shown capture area
FE 24mm F1.4 GM