Much of Salt Cay's interior is taken up by the shallow saline ponds that formed the basis of its economy for nearly three centuries. The network of low stone walls, channels, sluice gates, and canal earthworks that controlled the water flow between the ponds and the sea is still largely intact, giving the island an engineered, patchwork quality from above. Nine windmills once pumped water through the system; the stone foundations and partial structures of several still stand.
Walking through the salinas is free and gives a vivid sense of the industrial scale of what was once here. The low walls and the flat landscape create a strange, open atmosphere — not quite ruins, not quite wilderness, but something in between. Pink flamingos occasionally visit the ponds. Bring sunscreen: there is no shade.