Unlike many other Maltese Megalithic temple sites, the forecourt of the Ggantija Temples seems to have been extended onto a terrace. Unfortunately a garden has been planted towards the edge of the terrace and this reduces the scale of the forecourt and also denies visitors the view of the valley below.
As seen in the water-colour of Charles de Brochdorff painted in 1824, it seems that there was a trilithon leading to this terrace wall from the valley. Unfortunately this is now lost but some of the megaliths used to build the retaining wall are still in place.