If you visit the beautiful Barranco de la Virgen in the north of
Gran Canaria you will see a rock on the eastern side. 
But that's not all . . . You will also find a beautiful "Levada"
(acequia) - a channel carrying water - to walk around this
impressive rock.
Be careful on the wall. There are no rails. - not recommended
during rain and not for those who suffer from vertigo.
Inside the Cache Box you will find the exact coordinates of
the Tunnel Bonus - GC2NAZF