It might not be the most glamorous of locations, but Crown Princess Victoria of Sweden rocked construction site chic on a visit to a sweage treatment plant today.

The future queen, 41, donned a high vis vest, an orange hard hat and a pair of dark green wellies for the tour of the Henriksdal plant in central Stockholm to mark World Water Day.

The Crown Princess, who is first in line to the throne after her father Carl XVI Gustaf, is the High Patron of the charitable organisation WaterAid alongside her husband Prince Daniel.

The impressive Henriksdal facility, built within underground rock caverns, serves 800,000 people from Stockholm and surrounding municipalities.

Crown Princess Victoria of Sweden donned a high vis vest, an orange hard hat and a pair of dark green wellies for the tour of the Henriksdal plant in central Stockholm to mark World Water Day

Princess Victoria wore a stylish long wine-coloured wool coat beneath her high-vis ensemble - teamed with matching suede boots before she swapped them for her dark green wellies.

The mother-of-two swept her brunette hair back into her signature sleek low bun and wasted no time in getting down to business at the plant.

Having pulled on a pair of industrial-style black and yellow gloves, she ventured down into the cavernous wasteworks.

Henriksdal, built in the 1930s, is the first wastewater treatment plant in the world to be constructed in rock.

The vivacious royal wasted no time in exploring the site, which is built within underground rock caverns and serves 800,000 people

The mother-of-two swept her brunette hair back into her signature sleek low bun and grinned as she was given a tour of the plant

Crown Princess Victoria was photographd as she looked around the enormous facility in central Stockholm

Having pulled on a pair of industrial-style black and yellow gloves, she ventured down into the cavernous wasteworks

On her arrival, the princess wore a stylish long wine-coloured wool coat - which she later covered up with a high vis vest - teamed with matching suede boots

It was expanded between 1963 and 1970, with the addition of new basins for biological treatment in aeration tanks.

It now comprises two facilities, Henriksdal and Sickla, which are connected by two 1km tunnels.

The plant is being extended to double the treatment capacity to serve 1.6 million people and to comply with new, more stringent treatment requirements.

Victoria, who is first in line to the throne after her father Carl XVI Gustaf, later visited Lake Brunnsviken, located near her home at the Haga Royal palace in north Stockholm

The Crown Princess, pictured collecting fresh water, is the High Patron of the charitable organisation WaterAid alongside her husband Prince Daniel

The mother-of-two poured the water from the picturesque lake into a bright orange WaterAid container

The princess was later pictured filling a can with water from Lake Brunnsviken, located near her home at the Haga Royal palace in north Stockholm.



Victoria traded her stylish purple coat for a more practical knee-length waterproof anorak and walking boots.

World Water Day is an annual UN observance day celebrated worldwide which highlights the importance of fresh water.