Later, according to the available evidence found by archaeologists, Bronze-Age colonists who came from the south of Italy invaded the islands. These Bronze-Age people lived in warlike times and dwelt in fortified villages, which were normally sited on hill-tops. This is the main reason why they probably used the Borg in-Nadur Temple, since the latter temple is found on a hill-top and is protected naturally from the back by a valley and from the front by the sea. These Bronze Age people (used tools made of bronze) made use of the Borg in-Nadur Temple (which was built in the Megalithic period), but surrounded it by a fortified megalithic (made of large boulders) wall, which was a characteristic of Bronze Age People. This fortified megalithic wall (it can be seen in the given photo), which is about 55m long and extends in a South North direction, is the main evidence, which proves that Bronze-Age people used this temple. In those days, warfare may have been the result of invaders attempting to establish themselves on the islands, or Malta may have been divided into a series of village territories and battles could have been fought between competing communities.

Archaeologists have uncovered the remains of the three apses (semi-circular rooms) of the temple. Beyond the main entrance, there is a wide elliptical area about 25 m long and 15 m wide. As for now there is only left a Trilithon Entrance.