The world's last sail-driven oil tanker is being brought back to Scotland to be converted into a carbon-free cargoship.

The historic 1,800-gt Falls of Clyde was built in Port Glasgow in 1878.

Glasgow-based non-profit group Falls of Clyde-International has finally secured a contract for its safe return from Honolulu in Hawaii, where it had been a museum ship.

Its condition has been deteriorating, but Spliethoff heavy lift company Sevenstar Yacht Transfer will now load it up and bring it to the River Clyde in April, after a two-month voyage.

The company wants to rebuild it and return it to sea as a Fairtrade cargo carrier, which will also carry out education, cadet training and adventure sailing operations.

In addition, the ship will also collect plastic waste and recycle it.

Sole survivor

The vessel is the last surviving iron-hulled, four-masted full-rigged ship, and the only remaining sail-driven oil tanker.

It was designated a US National Historic Landmark in 1989.

Its owner said it wants to find a Clyde mooring in Greenock near to where it was built.

Talks are ongoing with Peel Ports to find a suitable site.

"As a community focused organisation, once restored she will offer communities across the UK the opportunity to sail on her and gain the experience of a lifetime," the company said.

"During her three-to-four-year rebuild it is estimated that she could attract in the region of 250,000 visitors per year and create new jobs."