Just for added interest, I remember being up in Guime village in 1988 (was in the process of buying a villa), and from there we could look down the mountain side with a great view of the airport. On this occassion, we watched an Iberia B727-200 take off from what was then RWY04. Nothing unusual in that, except what followed shocked the s***t out of us. It turned LEFT and proceeded (with a huge amount of noise) to climb parallel with the contour of the mountain and then screamed through the (large) gap in the peak and headed away..........
Check the Jepps and a local map and put 2 and 2 together to get your own visual impression !!!!