Calls are also mounting for Austin to receive a national bravery award.

Austin Appelbee swam four kilometres through rough surf and ran two kilometres to alert police that his mum, Joanne, and younger siblings, Beau, 12, and Grace, 8, were stranded at sea on January 30.

"This is a campus that will enrich the student experience and the very city itself. It's a place of possibility and discovery."

About 6pm, Austin, his 47-year-old mother Joanne, and his siblings Beau, 12, and Grace, 8, were caught in strong offshore winds while kayaking and paddle boarding.

Investigators had worked intensively to assess whether the accused acted alone and whether there was any ongoing risk to the community.

Now in its third year, the initiative makes overnight school camps on the island more accessible, offering eligible families savings of more than $150 per child for a three-night stay.

The cash was seized as suspected proceeds of crime after police allege the pair could not provide a reasonable explanation for its source.

When questioned by police about the identity of the owner, she told officers she did not know who owned the business.

Three Border Force vessels were sent to investigate the surrounding coastline.

Shaheen was a learner driver at the time and was driving unsupervised without displaying her L plates.