Coladas de la erupción de 1909 en Guía de Isora Nature · Guía de Isora, Tenerife - Suroeste, Santa Cruz de Tenerife Image of Guía de Isora, not of the place itself. Almost the entire surface of Guía de Isora is covered by lava flows from the 1909 eruption of the Chinyero volcano, the last recorded eruption on Tenerife, whose main cone lies in neighbouring Santiago del Teide. 1909 Photo: jeanlaurent (CC BY-SA 3.0) What to see and do in Guía de Isora