On the 5th day of our mountainbike tour around the island we started in Playa Blanca. The tour to Puerto del Carmen is only 30 km, but you have to cross Los Ajaches. And this means something! In any case, at some point of crossing Los Ajaches, just after coming down a very steep trail, the GPSr screamed that there is a cache "off the beaten track". So, we stopped and after some searching around found the box!
TFTC - Fogg & Consortin