The clean up begins after ex-Tropical Cyclone Ului batters the north Queensland coast causing countless damage both on and off the water.
Boats, Piers and Marinas tallying into the millions were damaged by 200kph winds and rough seas being whipped up by the category 3 storm in Mackay early on Sunday morning.
Large boats were smashed against the rocks and others had sunk or were partially submerged.
No injuries have been reported.
Professor Sean Connolly from the Australian Research Council says some coral has been destroyed by strong winds and rough seas but is unlikely to have any lasting effect on the Great Barrier Reef.
"Yes they're very much part of the normal life cycle of reefs and as long as ... the rest of the ecosystem is healthy then there's really nothing to be particularly worried about," he said.
"There will be changes to reef communities, the parts of the reef that are really exposed to the waves, those systems will change ... who lives there will change but then, in time, those earlier communities will recover."
