The Prince of Wales and Duchess of Cornwall will carry out a series of engagements in the Scottish capital today.
Charles will arrive in Edinburgh by train before attending an event celebrating the achievements of women in engineering.
He will meet groups of primary school children taking part in a range of activities at a technology firm marking National Women in Engineering Day.
Camilla will then join him for a visit to the food and drink festival at St Andrew's Square to mark 15 years of farmers' markets in the city.
The couple, who are known as the Duke and Duchess of Rothesay in Scotland, will be given a tour of the Farm to Fork event which celebrates locally produced food and drink.
The farmers' market is held every Saturday on Castle Terrace, with everything on sale baked, brewed, pickled, raised or grown by the stallholders themselves. It began as a twice monthly event in 2000, but five years later the demand was such that it started running weekly.
The Duchess will also visit the seaside area of Portobello where she will watch staff at community bakery Breadshare making products using organic ingredients that are sold at affordable prices.
Breadshare was started in 2011 as a not-for-profit social enterprise in the Scottish Borders. Since then, bakery production has increased from 200 organic loaves a week to over 2,500.
While there she will go to the nearby Beach House Cafe and Portobello Sailing and Kayaking Club. The visit marks the contribution made by the club in the revitalisation of the promenade over the last six years.
Charles, will then attend two reception events in his role as president of The Prince's Trust and also of Scottish Business in the Community.