During the summer campaign of 1995–96 the Logistics Department of the Argentine National Antarctic Directorate built two new habitable modules: a laboratory and a house with amenities.

In the 1999–2000 campaign the Directorate built a new main house capable of comfortably accommodating 8 people; the new building consists of 4 bedrooms, kitchen and 2 bathrooms.

His name pays homage to the conscript Mario Inocencio Ortíz who died, on March 15, during the Argentine Antarctic campaign of 1954–1955 in service aboard the transport ship ARA Bahía Aguirre.

[5][circular reference][3] Paradise Harbor is a large sea inlet southwest of Andvord Bay protected by an arc formed by the Lemaire, Cramer and Bryde islands.

Along the harbor's deep water coast lies the small Sanavirón Peninsula, a rocky promontory crowned by a mound of almost 70 m (230 ft) high called Punta Proa, where the base facilities are located.

[1][6] Research programs were developed for biology (zoology and botany), bacteriology, limnology, biochemistry, animal and human physiology, pathology, ecology, oceanography, meteorology, cosmic rays and ionospheric observations, environmental nuclear radiation, continental and sea ice glaciology, satellite geodesy, geology, geophysics, seismology, ozone monitoring and tide measurement.