The Mumbles Railway was closed in 1960. By 1960, industry in the valley was in steep decline and the landscape was littered with abandoned metalworks and the waste from them. The Lower Swansea Valley Scheme was started: an attempt to reclaim the polluted land into something usable. The Enterprise Zone at Llansamlet is built on part of this land. Further down the river, the Tawe was diverted—again—and the Parc Tawe development sits on top of the old North Dock. The old South Dock area now holds the Leisure Centre and Marina.