Folly Ruins are the remains of a large neo-classical mansion built in 1905 on the Folly Peninsula east of Port Antonio. The mansion was intended to be the grandest house in Jamaica, with over 60 rooms, but its construction was so flawed that it began to deteriorate almost immediately. By the 1930s it was abandoned and roofless; today only the lower walls, columns, and decorative floor tiles remain.
The ruin has a melancholy grandeur — massive stone columns against the Caribbean sky, ornate tile floors now open to the elements, bougainvillea growing through the walls. The peninsula is pleasant to walk around; the lighthouse at its tip is visible from the ruins, and the sea on both sides makes the setting dramatic. Entry is free and it is easy to combine with a visit to the lighthouse.