Etna Lava Tubes Project was born with the aim of spreading knowledge of little-known or unpublished Etna caves. Natural phenomena among the most fascinating of our volcano. Many texts report that on Etna there are at least 260 known caves. In reality the formation of lava tubes is very common and the number of caves is destined to increase considerably. Below we report a census of little-known caves - for which information is not available elsewhere - or unpublished discovered by our team in particular by the founders of EtnaExcursion.it Dario & Paolo Teri. During an exploratory campaign that began "for fun" in 2018 and still (April 2023), about 70 have been found, not considered in the general count indicated above. Here we report only those considered most interesting from a naturalistic point of view. For the caves already surveyed we recommend a visit to EtnaNatura.it and Mungibeddu.it