The Prince of Wales is visiting the Scottish Borders for a series of official engagements.
The Duke of Rothesay, as he is known in Scotland, will be in Hawick, St Boswells and Melrose. He will meet members of the public, visit a knitwear factory and open the new offices of an environmental charity.
Prince Charles will also meet charity workers on his visit, including a number of farmers, foresters, landowners and ghillies who help restore the river, boost fish stocks and attract tourists to the area.
The Prince is unveiling a plaque to mark the official opening of the new offices.
James Hepburne Scott, Tweed Forum chairman, said: “We are delighted that His Royal Highness will officially open Tweed Forum’s new offices and are greatly looking forward to telling him about our partnership approach to the management of the river, which is delivering significant environmental benefits.
“Together with all of our partners, we share a passion for this important river and it will be a privilege to tell His Royal Highness about the work we carry out to protect and conserve it.”