More than $45 million has been allocated in Tuesday's budget for repairs to sites managed by the Sydney Harbour Federation Trust, with about half for Cockatoo Island.
Layered with Indigenous, convict and industrial heritage, the harbour's largest island — and world heritage site — is becoming run-down, with an increasing number of areas shut for safety.
Now the federal government is stumping up cash to tackle the "critical backlog" of maintenance work needed to preserve the tourist attraction.