Gerringong resident Bobbie Miller, a member of Amnesty International, said it was also to show support for Andrew Chan and Myuran Sukumaran and their families, as well as all the other thousands of people throughout the world who are facing execution.

"Amnesty International reports that in 2013: 778 executions were carried out in 22 countries; 1925 people in 57 countries were known to be sentenced to death; and 23,392 people were known to have been on death row worldwide," she said.

"These figures do not include the thousands of executions likely to have taken place in China, which refuses to divulge details of its use of the death penalty."

Mrs Miller said a crowd of about 20 people defied the rainy conditions to attend.

"Mostly we sat in silence reflecting on the death penalty and the fate of those two young men in Indonesia," she said.

"We ended it with a Phyl Lobl song she had written called Mercy."

Mrs Miller said the death penalty didn't stop other people from committing crimes.

"Other countries are gradually getting rid of it, because it doesn't work.

"There seems to be some little hope that they might overturn the decision, but it seems unlikely."