Although with the modern navigation of today, such as GPS, DGPS, Loran-c, radio and radar bacons, one can think that the Lighthouses will become obsolete, and yes, many of them are already today abandonned, but many are serving now as emplacements for the antennas and equipment for the new navigation aids. Lighthouses have an unique structure and some are so well withstanding severe weatherconditions for centuries, that it would be a shame not to preserve this patrimonium for the next generations. With their activations of Lighthouses around the world, the last week-end of August each year the radio amateur community is also helping to preserve the lighthouses by informing to a wide public the unique structure of lighthouses and also the beautiful environment they are situated in.