Eastern Biniac naveta, Prehistoric funeral monument in Alaior, Spain.

Eastern Biniac naveta is a circular Bronze Age tomb with an outward-sloping outer wall of large rough-hewn blocks laid horizontally in cyclopean masonry, entered from the south. A long corridor leads to an oval chamber built by corbelling blocks inward and roofed with horizontal slabs. Its outer length is 11.10 m and outer width 10.70 m; the chamber measures 3.90 m by 2.30 m.

Built between 1500 and 1000 BCE in the Bronze Age, it was used for collective inhumations by a family or small community. The archaeologist María Luisa Serra Belabre excavated its upper part in the 1960s without finding remains. A dry-stone wall of unknown date, described as recent by Hernández Sanz in the early 20th century, was added to the south side and partly covers the prehistoric masonry.

The chamber served as a place where families buried their deceased together with objects reflecting their beliefs about the afterlife. This practice reveals how important communal ritual and shared burial customs were to these ancient people.

From kilometer 8.1 of the Mahón–Ciutadella road (Me-1), a left turn leads to the area called Argentina; the naveta stands at the entrance of the Lloc de Menorca property. The monument is outdoors and unshaded, so bring water and sun protection in warm months.

The dry stone wall abutting the south side is of unknown date; the Menorcan scholar Hernández Sanz, writing in the early 20th century, already described it as recent. It covers the southern face of the cyclopean masonry, so the monument's original outline can only be read from the other sides.