El Hierro is one of the Canary Islands. It measures less than 50 kilometres from one end to the other and is a haven of peace in the Atlantic Ocean. The island has the UNESCO Biosphere Reserve designation, and is home to natural swimming pools and crystal clear waters, ideal for swimming and scuba diving, as well as huge areas of protected woodland in the inland area. El Hierro is outstanding for its diversity. It has almost 100 kilometres of rugged, cliff-lined coastline, with coves and lagoons such as Charco Manso, in the north, and Charco Azul, in the southwest.
The clear, deep waters to be found close to the coast make this island ideal for lovers of diving and snorkelling. There are diving centres and schools for beginners and experts in the sport, with organised outings to the best local dive sites.This is also an excellent place for outdoor sports: paragliding, mountain biking, surfing, caving, hiking, adventure activities... The contrasts are reflected in the island's varied landscape. There are fertile fields and meadows, pine woods, subtropical vegetation and fascinating volcanic areas to be found inland.El Hierro has the densest concentration of volcanoes of any of the Canary Islands, with more than 800. Some of these are outstanding for their beauty and size, as is the case with Don Justo Cave, which has over six kilometres of galleries.