Just outside the southern town of Guía de Isora in Tenerife alongside the road going northwards are a number of large mounds of earth and volcanic rocks. Some have definite walls to them made of stones and one is in a triangular shape. Every day thousands of cars pass them by but I think it is only me that has actually thought these constructions are of any importance to the history of the island.

I have long been fascinated with the pyramid complexes of Tenerife and with the Guanches, who were the original people of the Canary Islands before the Spanish conquest. Many believe these people made the pyramids, although the academics will not accept this and neither will many local people, who say they are merely heaps of stone that farmers and landowners put there to clear the ground. The fact that the pyramids are stepped, have geometric shaping, are aligned, have ramps or stairways and must have taken an awful lot of hard work to construct are all ignored by these pyramid debunkers.

When I first saw the mounds near Guía de Isora I was reminded of tumuli and cairns that can be seen in many places in the UK. I did some research and found out that the Guanches are credited with building tumuli on the neighbouring island of Gran Canaria. So if they could do that there then why not here?

These tumuli in Gran Canaria were located in Los Cascajos, Camino de los Molinos, Las Nieves but, according to José Luis Concepción, they were destroyed in the 1940s to make way for banana plantations.The tumuli were used by the Guanches as burial mounds.

Writer and researcher of mysteries Philip Coppens was recently on Tenerife towards the end of January. Philip is the author of The New Pyramid Age and has a special interest in these constructions, which are being found all over the world. He and Sam Osmanagic, who is famous for discovering the Bosnian pyramids and who was on the island at the same time, gave a well-attended lecture in which they revealed some of the fruits of their research.

I was able to show Philip and Sam the pyramids in San Marcos near Icod where I live. On another day I took Philip to see the pyramid complex in Santa Bárbara, which is also near Icod and overlooks the sea. We decided that in each location the pyramids overlooked the sea and were in view of a volcanic mountain - in San Marcos and Santa Bárbara you can easily see Mt Teide in the distance behind the pyramids.

We went to Guía de Isora to have a look at the constructions there and Philip agreed with me that these were not random piles of stone made by farmers but were a complex of cairns. We noted again that they are overlooking the sea and are in view of a mountain, which in this case is Montaña Tejina.

On the other side of Tenerife are the famous Pyramids of Güímar and again they overlook the sea and are in view of the volcanic mountain, Volcan de GüÍmar, or Montaña Grande as it is also known.

Philip told me that he believes that the Guanches were a seafaring people and that that is how they got here originally from North Africa. It is widely considered that the Guanches ancestors were the Berbers from the area of the Atlas Mountains, however, it has been said that these people never had boats. This leaves the mystery of how did they get to the Canary Islands if not by sea?

On the island of Sicily are another series of pyramids looking very similar to the ones on Tenerife. It seems very likely they were made by the same people. It seems very likely to me that the Guanches made tumuli, cairns and pyramids and whilst the world of academia may choose to think otherwise I have enough evidence to convince me that they did.