Around 300 people were at Melbourne's National Day of Action against the government's internet filter, braving the heat before the state was inundated with golf-ball-sized hailstones just hours later.
Speaking at the event, various interest groups gathered outside the State Library of Victoria where bananas were given as a prize to protesters with the best sign.
The Greens Party, Sex Party, Pirate Party, Exit International, Electronic Frontiers Australia and Socialist Alternative were all represented at the event.
Each of the organisations and political parties gave reasons as to why they believed the Federal Government's plans should not go ahead for a mandatory filter of the internet.
Greens candidate for the Senate Dr Richard Di Natale said the party would be proposing the government "dump" the proposal. Lindy Boyd from Exit International, a group that advocates safe voluntary suicide for the elderly, raised concerns with the proposed filter blocking access to sites informing the elderly about safe suicide.