In reply to soren:
I've just got back from El Chorro
I tried to book at the olive tree but got a message from mel there saying that
"we are fully booked in our rooms and dorm for the whole of December up until the 18th Jan 2014."
I stayed in Ardales in the ended, in a apartment called Apartamentos Ardales cost £50 for a large apartment..
It was very quiet and about a 20minute drive to el chorro.
On the plus side it's only five minutes from turon that I fully recommend.
This place also looked good
http://www.lagarganta.com/