November 2021, the government of Madeira expanded a marine protected area around the Selvagens Islands, creating the largest fully protected marine reserve in Europe at 2,677 square kilometers. The Selvagens Islands are a small archipelago in the North Atlantic located midway between Madeira and the Canary Islands.
Originally the Marine Protected Area of the Selvagens Islands covered approximately 95 square kilometers, now its area is 2.677 square kilometers. This is the largest Marine Protected Area with full protection in Europe and the entire North Atlantic. It's located in an area of 12 nautical miles around the Selvagens Islands between Madeira and the Canary Islands.
The reinforcement and extension of the protection of the Selvagens Islands will contribute to the increase of marine diversity, genetic richness, and reproductive capacity of species, including many with commercial interest. It will also ensure the integrity of ecosystems, contributing to better marine conservation of the entire North-East Atlantic.
Source : https://allatlanticocean.org/view/news/the-north-atlantics-largest-mpa-