A MARRIAGE equality flash mob has this afternoon made a bold bid for the attention of a huge long weekend holiday crowd already engaged in a everything from sand sculpturing to riding Australia's biggest water slide.

A large group of students from the University of the Sunshine Coast's Amnesty International group danced in front of a Loo With a View with the beach full of swimmers, water sliders and parents and children attending the Shaping Sands exhibition by world champion sand artist Dennis Massoud of Noosa sponsored by Mooloolaba Rotary and the Sunshine Coast Council. 　

Spokeswoman Nina Ashfield said the event had been planned since before the postal survey was announced with group keen to engage people in the campaign for equality.

"With all the hateful debates happening around the issue, we wanted to do something that supports equality in a really fun and creative way,” she said.

"Having already advocated for marriage equality with our local MPs, we thought it was time to get the public involved.”

Ms Ashfield said Amnesty International USC members were among many young Sunshine Coasters who believed marriage equality was overdue.

"Now that the postal vote is going ahead we would like to encourage everyone to vote yes. Not voting in this survey is equivalent to a no vote.”

She said Amnesty International wanted to ensure the United Nations' Universal Declaration for Human Rights was upheld.

It states in part all men and women of full age had the right to marry and are entitled to equal marriage rights.

"It's time for Australia to make a commitment to upholding the Declaration and to equality,” Ms Ashfield said.