Cueva de El Tendal Historical milestone · San Andrés y Sauces, La Palma, Santa Cruz de Tenerife An archaeological site and Bien de Interés Cultural (Spain's highest level of heritage protection), the most important on La Palma, with nine dwelling caves and two necropolises; the earliest date obtained by thermoluminescence goes back to the 4th century BC. Photo: Frank Vincentz (CC BY-SA 3.0) What to see and do in San Andrés y Sauces