We've now arrived in the town of A Guarda, where we'll finish off the first day visiting the southwesternmost point of Galicia. This town – along with the town of O Rosal – is located on the River Miño estuary, a vast wetland of great ecological value that you'll have a fine view of from the fortified pre-Roman Iron Age Village of Santa Trega, located near the summit of the mountain. By simply setting foot in this place, you will experience a recreation of the lives of our ancestors. Some of the excavated remains have been restored, including the circular-shaped fortified towns that show the layout of their prehistoric dwellings with their typical straw roofs. There are also rectangular houses with rounded corners that are the result of Roman influence. Although the village may seem chaotic, it does have a logical order based on "households" that you might like to take some time to discover, along with the petroglyphs that are both inside and outside of the complex, or the Pedra Furada (Pierced Stone), a large hollowed-out rock with a natural window. It is possible that as many as five thousand people once lived here. They had a self-sufficient economy and also produced ceramics, jewellery, textiles and tools, examples of which you can see in the archaeological museum located in the village.