On Saturday morning, Sydney locals awoke to the unfamiliar sight of a 60-foot-tall pink condom covering a heritage listed 157 year old obelisk in the Australian city’s Hyde Park, the Independent reports.

The stunt is part of an AIDS awareness campaign by the AIDS council of New South Wales (ACON) entitled “I’m ON.” The campaign seeks to encourage gay men to practice safe sex. Campaigners also distributed condom packets around the structure, printed with the message “Test more + treat early + stay safe = ending HIV.”

According to ACON chief executive Nicholas Parkhill the campaign was conceived to “turn lots of heads and raise a few eyebrows.” He explained that “We won’t be able to achieve this goal [of aids prevention] unless gay men use condoms when they’re having high-risk sex with casual partners, particularly in situations where a partner’s HIV status isn’t known. It’s that simple.”

However, some residents have have voiced their disapproval of the campaign due to the condom’s imminent proximity to a park where children often come to play. The director of the Australian Christian Lobby, Wendy Francis told news.com.au “Parents do not want to be forced into a situation where they have to explain something that’s not relevant.” She emphasized that “It’s never appropriate to put sexually explicit advertising in public places.”