Work has started on a £7.3 million project to transform a former golf course on the Lincolnshire coast into a nature reserve.

The project at Sandilands near Sutton-on-Sea will feature open water and islands, as well as reed beds and ponds on the 25-hectare (62-acre) site.

The National Trust said the wetland nature reserve would “encourage more wildlife and migratory birds to return to the area, including marsh harriers and curlew sandpipers”.

Construction, which also includes walkways and a new visitor center, is scheduled to be completed by fall 2025.

Sandilands lies on the path of the Atlantic Flyway, a globally important migration route for birds.

Conservation consultant Carl Hawke said the reserve would be “a vital resting and refuelling site” for birds such as black-tailed godwits, spotted redshanks and spoonbills, as well as breeding birds such as avocets, lapwings, oystercatchers and bearded reed tits.

“In addition, it will continue to provide a home for many of our popular native bird species such as skylarks, meadow pipits, reed buntings and linnets.

“We expect Sandilands to become a haven for all types of wildlife.

“It is already a great place for rare plants such as bird’s-foot trefoil and bee orchid and our conservation work will help protect these too.

“Sandilands is an integral part of the National Trust’s increased commitment to protecting nature and tackling climate change, enabling people to connect with nature all year round.”

The nature reserve will also include a community room and a café for visitors.

The foundation said the proceeds from the café and the renovated parking lot would be used to preserve the wetland.

Kirsty James, General Manager of Sandilands, said: “A lot of work has been done behind the scenes and we are delighted that work is now starting on the physical changes at Sandilands.”

“We look forward to seeing the area transformed and creating not only a sanctuary for wildlife, but also a peaceful and tranquil place for people to walk, spend time with friends and family and simply enjoy the beauty of nature and the great outdoors.”

The Trust stated that the ongoing works would not impact visitors to the reserve as some of the existing facilities and planned activities would continue throughout the construction period.