Members of the public were invited to try their hand at bubble-making as part of the awareness day organised by Cystic Fibrosis Otago.
The event aimed to promote greater understanding of cystic fibrosis ahead of a nationwide fundraising appeal this weekend, Cystic Fibrosis Otago membership liaison officer Julian Cox said.
About 50 people had stopped to send giant bubbles streaming into the sky by mid-morning, alongside several Otago people who have the disease.
The inherited disease attacked sufferers' lungs and other organs, eroding their function and reducing life expectancy to about 40 years, he said.
Life expectancy was increasing, helped by "aggressive" treatment with antibiotics, but the disease still affected about 500 people across New Zealand, including about 25 in Otago, he said.
Saturday's event was the second annual bubble-making event in Dunedin, and Mr Cox - whose daughter Rachael (12) has the disease - said the theme was appropriate.
The simple act of blowing a bubble could be hard for those with cystic fibrosis, but the bubbles launched on Saturday helped put a smile on people's faces, he said.
