Low tides on Ireland's western coast have revealed the remains of defensive walls that are likely Bronze Age ramparts. Archaeologist Michael Gibbons discovered the ramparts, which are made of large limestone blocks, on a partially submerged isthmus, a narrow strip of land between two parts of the sea. But he's only recently obtained photographs of the site. https://www.livescience.com/archaeology/low-tides-reveal-bronze-age-fortress-that-likely-defended-against-irish-mainland
