In September 2006, Island of Lastovo and its Archipelago became the Croatian Nature Park, when the Croatian government passed the Act on Designating the Lastovo Archipelago Nature Park.

The new Nature Park�is called Lastovsko Otocje (meaning Lastovo Archipelago)

It covers an area of almost 200 km2 of which the mainland area accounts for 53 km2 and the marine area for 143 km2.
The Nature Park contains all 44 islands, small islands, cliffs and reefs belonging to the Lastovo municipality, with the biggest being Lastovo and Su�ac.

This area is one of the most preserved marine areas in the Adriatic. Due to its values and characteristics it represents a vast natural and partly cultivated area of land and the sea showing ecological features of international and national importance, as well as pronounced landscape, educational, cultural, historical, tourist and recreational values.

The protection provided is intended to preserve the inherited landscape and cultural values and biological and landscape diversity including the appertaining sea and the submarine area.

Within six months upon the coming into effect of this Act the Government of the Republic of Croatia will by a regulation establish a public institution for the management of the Lastovo Archipelago Nature Park.