Situated very near to the Presa de las Niñas campsite is the very special Árbol de Casandra (Cassandra Tree). On my first visit, with my good friend Stu Gillespy, it immediately drew my attention and I wandered over towards it. We were so impressed by the arid magical area that we had to return a couple of days later and explored the area in the cooler evening.
I only found out later that the tree was famous locally, and that there is a bloody legend connected to it.
The so called Casandra tree [is] a four-century old pine tree which takes us back to legend. It is easy to spot, due to its majestic presence and longevity. Although there is no official version, it is generally agreed that it takes its name from a young 15 year old girl who liked to spend pleasant hours in the company of young Iván. She was the envy of the village and the subject of nasty chit-chat, and having placed the family’s honour in doubt they called her a witch. They then burned her at the same tree where her pure, naive and natural sentiments were read out like a devil’s curse. However this is nothing more than legend and an old local tale, which we don’t know if it is real or a purely ingenious fable. But what is strange is that the pine tree has survived several fires and strikes a peculiar figure, making it so easily recognizable in this huge area, near to this fine setting blessed with water.
https://www.grancanaria.com/turismo/en/the-island/the-island-with-557-different-faces/las-ninas-reservoir-and-a-legendary-old-tree