On Friday 28th September is Volcanoes Night in Fuencaliente.
This free event, open to everybody, offers the chance to meet volcanologists and geologists and find out what they do.
Much of the program is in Spanish, but there will be 30 minute guided tours around San Antonio volcano explaining the geological history of the island with translations to English available (starting 4pm), and science cafés in the wrestling arena, starting at 9 pm, including one with Simon Day, who started the theory that the flank of La Palma will collapse and raise a mega-tsunami.
If you understand Spanish, there are lots more activities that you might enjoy. For example, the restaurant Casa del Volcan has a presentation on volcanoes in the solar system and a chance to look at the moon through a small telescope afterwards (2€). The local Winery has a talk on how volcanic soils affect vineyards, complete with wine tasting for 5€. There’s a film about the 1949 eruption, with local people talking about their memories of it afterwards.
You can get more information at the website: http://www.nochedevolcaneslapalma.es/