Isla de Ons
Ons is an archipelago located at the entrance of the Ría de Pontevedra, which makes parapet. It has a land area of 2,171 maritime hectares and 470 terrestrial, for a total of 4,458 km2, and geographically are 42 ° 22' North latitude and 8 ° 56' longitude West. It is located in the Rías Baixas and for social reasons ‐ and not of proximity ‐ they belong to the municipality of Bueu, in the province of Pontevedra (Galicia, Spain); specifically to the parish of Beluso, where were the ancient settlers. This archipelago consists of the Isla de Ons (414 has) and several islets, such as the Onza, Centolo or Freitosa. The Isla de Ons is 5.9 km long by 1.3 km wide, has a flattopped form (the maximum height is in the Lighthouse of Ons, with 128 m) 4 km of land.
Since 2002 belongs to the maritime‐terrestrial National Park das Illas Atlánticas de Galicia, but in the past were a refuge for pirates. They have always been inhabited and now have a permanent population of 78 inhabitants, according to the 2010 census.
But to preserve this untouched natural paradise, is only open to the public during summer period. There are two ways to visit the Isla de Ons: on private boat, where it is necessary to apply for a permit of anchorage, or with a shipping company in summer, weekends of May and Easter. In high season, aboard these catamarans you can see the bottom of the ria de Pontevedra, inhabited by different varieties of algae, fish and rock formations (or sand).