Centro de Buceo El Bajón
Family-run PADI centre in La Restinga, the only one founded by locals (El Hierro natives), with its own boat and apartments; daily boat dives (usually two in the morning, up to three day dives and a night dive), PADI courses (it has a PADI Course Director), whale-and-dolphin watching and boat rental. It lists the El Hierro dive sites with depth and level on its site.