More than 60 members of a health club took part in a 3.5 mile lunchtime run in aid of the charity Breast Cancer Care.
The run on Tuesday started and ended outside the Bankside Health Club in Southwark Street and took in the banks of the nearby Thames.
"It's wonderful to see our members getting together and doing something like this for such a wonderful cause," said Bankside Health Club general manager Heidi Blackburn.
She also praised the staff of Breast Cancer Care whose offices are across the road in Great Suffolk Street and thanked Better Bankside who assisted in setting up the event.
The final total raised is expected to be in excess of £1,000.
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