The Duke and Duchess of Cambridge stepped out while Prince George and Princess Charlotte were at school.
William and Kate completed a number of royal engagements in the capital.
They visited the London Bridge JobCentre where they chatted to a group of people who were being helped to move back into work after being affected by the coronavirus crisis.
William and Kate also spoke to employers during the engagement.
The Cambridges next visit was to the East London Mosque and London Muslim Centre in Whitechapel.
They met volunteers who have been delivering essential items including food and medicines to the vulnerable during the coronavirus pandemic.
The project was supported by National Emergencies Trust, of which William is patron.
William and Kate ended their day of engagements by making bagels at Beigel Bake Brick Lane Bakery.
The Cambridges have returned to London after spending much of the coronavirus pandemic at Anmer Hall in Norfolk.
William, 38, and Kate, 38, kept busy with virtual engagements during the lockdown.
The parents-of-three also had their hands full home-schooling George, seven, Charlotte, five, and Prince Louis, two.
They have resumed face-to-face royal duties as restrictions have eased.
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