While exploring Gran Canaria with my brother and camping around we discovered this really nice place. It looks like it was some official building of government administration however it is completely abandoned now.
It has one of the most awesome panoramas overlooking valley and city in there. It is not restricted in any way except there is a road block for the car. We meet with an elderly local couple who came to have lunch there with their tiny dog. It is a great place for that - sitting on the roof and enjoying panorama around you.
GeoCache is a black PET container with waterproof sheet of paper inside