El Hierro is the smallest island of the Canary Islands. In 2000 was declared a Biosphere Reserve by UNESCO which implies that most of the fauna and flora are protected. Also the coast is included in the Reserve, all the underwater life is protected. El Hierro is outstanding for its diversity. It has almost 100 km of rugged, cliff-lined coastline, as well as coves and lagoons such as Charco Manso in the north, and Charco Azul in the northwest. 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.