Well, we know this isn't conclusive, but just take a look at this footage our Producer Kat shot this morning on her morning walk.
6.10am, right near the Boatshed Cafe... Kat was walking along when she saw the finned creature, at around about the location below. As indicated by the shark like icon.
It's common knowledge that you can find sharks in the Swan, but it's pretty rare to get actual footage, so despite the fact that the footage doesn't categorically state either way what it was, there's every chance that sharks patrol these waters.
Written by: @dantheinternut