Gouaro Deva, Protected natural area in Bourail, New Caledonia.

Gouaro Deva is a natural area of about 8,000 hectares in the commune of Bourail, Southern Province, New Caledonia, stretching from the coastline to the mountains up to Cap Goulvain. A pale dirt trail crosses tall yellow-green grass toward a band of dark green trees and shrubs, beyond which short-grass hills with scattered bushes and patches of bare earth rise toward distant ridges. The site is often called Domaine de Deva after the ecotourism estate occupying much of its surface.

Gouaro Deva holds one of New Caledonia's oldest archaeological sites, occupied by Lapita people around 3500 BC, whose pottery was unearthed in excavations. In 1879 the Tabou valley fortress sheltered Kanak rebels of the 1878 uprising led by chief Ataï, defeated by Colonel Wendling's troops. The province bought the 7,700-hectare property in 1992, and in December 2011 classified 1,000 hectares of the Tabou valley as a historical site.

The name Deva comes from the Gouaro clan, who have claimed this land since 1984 and hold burials in the Tabou valley. In 2018 the Southern Province signed an agreement with the GDPL "Mwe Ara", grouping the local clans, and the commune of Bourail to manage the domain together. The site also holds Lapita pottery from one of New Caledonia's oldest archaeological occupations.

The site stretches about 8,000 hectares from the coast to the mountains up to Cap Goulvain, so plan transport between the beach, the Tabou valley and the hills. Since 22 January 2016 a SEM under a lease with the Province Sud handles visitor reception, security, upkeep of spaces and equipment, and control of invasive species. Access to the Tabou valley, classed as a historic site over 1,000 hectares in December 2011, is best checked with the Domain's reception before setting out.

The 1992 purchase of the 7,700-hectare Gouaro Deva property by the Southern Province cost 325 million Pacific francs, about 2.7 million euros. The sale of 2003 was cancelled after 2004, keeping the land in the provincial domain. A 2016 agreement entrusted the Domaine de Deva to the SEM Mwe Ara, which had thirteen employees in 2019.