I live on Tenerife and am continuing my research of the pyramids here. I was doing some research and stumbled on this thread.
Anyway, what I want to say is that first of all I find it disappointing and significant that only the Güímar constructions are the focus of the debate. There are other equally impressive pyramids just outside Icod de los Vinos and also in Santa Bárbara. They do not get discussed usually.
Secondly, that although the academics and all those that agree with them because they are 'experts,' keep on with their "piles of stones" and "agricultural terracing" idea, it is clearly evident that these constructions are far more than that.
Thirdly, for all who say there is no evidence that the Guanches ever made pyramids, I know of a Spanish book published in 1985 by Centro de Cultura Popular Canaria (before Heyerdahl's involvement here) by Domingo Lima Rodriguez entitled Los Guanches that states that the Palmeros (Guanches from La Palma) made pyramids of stone for each of the 12 kingdoms. If they did that over there then why not in Tenerife?