Our work at Sandscale Haws

In 2024, we celebrated the 40th anniversary of Sandscale Haws coming under the National Trust’s care. It was a time to reflect on this unique and important nature reserve, and what it means to the people who visit and care for it.

The sandy estuary of the River Duddon, with its wild, grass-covered dunes and panoramic views of the Lakeland fells, is a much-loved local gem for residents in Barrow and Askham. Dedicated rangers and volunteers work year-round to keep the rugged landscape a happy home for wildflowers and wildlife.

We're so proud to present a special film marking 40 years of Sandscale Haws National Nature Reserve. Directed and written by Dom Bush (Land and Sky Media) and Nancy Burditt (Programming and Partnerships Officer) the film explores what Sandscale Haws means to the local community, visitors and wildlife alike.

Watch the specially comissioned short film here.

Sandscale’s dunes are constantly changing and the oldest dunes here are around 400 years old.

Every year, especially in winter, they face constant battering by winds and sea, building them up and blowing them along the beach to create new dunes.

We call these new dunes ‘embryo’ dunes. They’re the little hummocks of sand which are made when the blown sand forms around grasses like sea lyme grass or sand couch. Their strong roots help to anchor the sand and slowly a dune develops.

Areas of bare sand provide the right kind of habitat for so much wildlife at Sandscale Haws, and it’s a constant job for the ranger team to stop the whole of the sand dune system from turning into grassland.

Once the embryo dunes start to get more established and the grasses are completely engulfed by sand, the fast-growing marram grass takes over. It can survive the moving, shifting sand and can grow up to a metre in height every year. Most of the dunes at Sandscale Haws National Nature Reserve are now completely covered by grasses which eventually make the whole dune stable.

When it stops growing, other plants and grasses start to move in. These new dune grasslands are rich in wildlife, but the crucial pioneer habitats are gradually lost.

Since 1946 open bare sand habitats at Sandscale have dropped to under 2%. Mobile dunes are now only around the seaward edge of the nature reserve – everywhere else has been covered by grasses and scrub.

To help create a more open habitat the rangers have been trialling different methods:

• Firstly, they’re creating bare patches of sand in the dunes using hand tools. Creating more open areas in the grassland to helps those rare pioneer plants to grow.
• Secondly, sand is being encouraged to move inland. By creating weak points in the taller dunes which edge onto the beach, their aim is to encourage the bare dune sand to move towards the land and form openings (blowouts).

This helps to change the shape of the dunes and create new wet hollows (dune slack). The natural movement creates crucial pockets of bare sand which help rare pioneer plants to grow and solitary bees to burrow.

At wet times of year this creates a shallow pool which provides an ideal habitat for breeding natterjack toads and plants such as variegated horsetail.

Nature creates the best habitats for wildlife but sometimes it needs a helping hand. Managing pools created for the natterjack toads is a big annual job for the rangers and volunteers.

The pools are fed by water from the nearby Hawthwaite Beck. A sluice controlling the water level allows the rangers to keep the pools wet in the summer months for the toads when other natural pools have dried up.

It's a cold, wet and muddy job in the winter for the rangers and volunteers as they clear the plants and debris out of the pools. If this wasn't done, the pools would become too shaded for the toads and their toadlets to survive.

Up to 20 pairs of toads have bred in these pools. One year there was a count of 80,000 toadlets in one pool making them perfect ‘nursery pools’.

Cows are our conservation heroes. Look out for them grazing the dune grassland as you walk around the reserve. Without them, the sand dunes would be covered in a thick blanket of scrub.

By eating the coarse grasses and young scrub like hawthorn, cows are helping us create space for the less competitive and sensitive plants and flowers around Sandscale Haws.

Letting cows graze also mimics a more natural way of grassland management, providing different heights of grassland which can attract all kinds of insects and wildlife.

Where the rangers have carried out grazing experiments, they can see that the grass in areas which hasn't been grazed is thick and coarse but in those areas which have been grazed they are rich in wildflowers.

Conservation grazing uses traditional breeds of cows such as Highland cattle and Galloways because they’re happy to eat some tougher, thornier plants and can survive quite happily all year round. Our rangers work closely with National Trust tenant farmers to graze the right numbers of cattle in the right place and at the best time of year.

Each breed of cattle has a different sort of temperament, and our tenant farmers carefully plan which animals they are going to choose to graze sites with lots of public access.

Cows can be alarmed by dogs which are not under control, so please keep your dog on a lead around cattle.