At the center of Tejeda volcanic caldera a standalone pinnacle jutting 4,639 feet high, a guardian over the Big Ravine. Roque Bentayga is the third tallest point in Gran Canaria located within a biosphere that covers 46% of the island.
In the ravine you will find many Canary pines and almond trees along with the dazzling view, bio diversity is significant in this area with 300 species, 50 of them which are endemic. Located on the incredibly beautiful and intense mountain road which leads to the highly popular Roque Nublo visible from Bentayga on the not so distant rim.
It is a short walk to reach the base of the basalt pylons, one mile roundtrip gaining 321 feet. Early in the morning not another sole was there, Bentayga receives far fewer visitors than its neighbor.
At the end of the trail is an archeological site, Almogarén del Bentayga, which was likely used for religious purposes by the aborigines.
It is easy to see why they would use the place with views that move you such as these. There are over a hundred caves here in this protected and precarious location that the people would use as their last stand against the Spanish conquistadors. 
In the visitor center below you can learn the history of the Canary Conquest, which began in 1402 with Jean de Bettencourt and would culminate on this very rock. A movie, artifacts, and displays lead up to the end where the Canarians with their weapons of wood and stone would stand behind the drywall at the base of this mountain, which strategically limited access to the top. 
They must have known it was the end as the Spanish proceeded with steel swards and guns, and the rest is history.
Good to know:
+The museum with its restrooms and trail are free to access
+Be sure to bring a jacket for cooler weather at this altitude