The News of the World sensationalised the volcanic rock it by calling that hill above the town a volcano.
Confused lots of people but it sold papers.
BTW a stream running down from that big hill is partly built over in the town which converts a stretch of it into a man-made underground stream which has an inlet, and then an outlet on the big beach, and I wonder if the outlet on the small beach is a similar man-made underground stream, but that's just guessing.
Sorry Pegasus, but if I am understanding GEarth properly there were almost certainly volcanoes up there and lava tubes up there, millions of years ago
Look at Bensafrim which is about 5 miles due North of PdL then
To see what I believe is evidence 1) Open GE
2) Type Bensafrim, Algarve in the "fly box". Click.
3) Look about 1 - 2 miles NNW of there (at about 10 oclock, 11 oclock).
[You may have to change the measurements from feet or metres to miles - easy]
To measure that distancea) Click on the Short blue upright rule [in a box] at the top of the image, then
b) click on Bensafrim then up in a NNW direction until about 1 1/2 miles shows.
4)
Zoom right in.
NB. I suggest you use images from 2007 .
I suggest this becauise, on this image as against the others, there was obviously water in the broken Lava tubes and also cloud being reflected. Because they are reflectiing white they show more clearly than in other dated images.
To Regress your image to 2007 on GEarthi) Click on the clock at the top of th GE image. A slider will come down.
ii) Move the slider to 2007 and the image will change.
iii) Centre on the area about 1 -2 miles NNW of Bensafrim and zoom right in.
You should see some strange looking kinda wedge shaped white patches.
Now as I explained before I think, I am NOT a geologist but have an interest in Volcanoes having visited 8 in 6 different countries, or islands.
I believe these white patches show where ancient lava tubes [tunnels] have fractured, with the rainwater mainly running down the mountainside underground in these tubes, but showing at these fractured places as white patches.
I am only using logic to base my thoughts on, along with my very limited knowledge. I am happy to be proven wrong.
Also I found this advert. Not the one I read about 4 years ago, which IIRC said 7 miles, but it is an indicator. 30 Km is nothing in regard to distance related to mountains .... and please remember Rocha Negro at Praia de Luz. That is a volcano. Seems the place could be riddled with lava tubes [tunnels]
Around Monchique, in the hills and mainly to the south the place is covered with extinct volcanoes and caldas /caldeira. This is only about 11 miles from the coast between Lagos and Portimao Not far away ! The whole range of hills seems to be volcanic in origin for many miles.
http://www.themountainbikeadventure.com/Now I am sorry but I have to go. Up to my neck in work and drowning tbh.