In September 2007, the Heritage Lottery Fund awarded a grant of £2.96 million towards a major wetland restoration project at Castle Espie, the largest investment in biodiversity in Northern Ireland. At the heart of the project, costing £4m in all, will be the restoration and improvement of intertidal and freshwater habitats along the shores of Strangford Lough to encourage more species and greater numbers of waterbirds to feed, roost or breed at Castle Espie, as well as restoring important habitats. A new ecologically sustainable visitor centre would also be constructed, and other improvements would be carried out to hides and observatories.