[3] In late May 2019, Sea World announced the addition of a $50,000,000 mega project area - The New Atlantis - which would feature three new rides scheduled to open from December 2019 and onwards.

[5] The investment was made with the intention of rejuvenating the neglected Sea World after dwindling attendance and a hit to the domestic theme park industry following the 2016 Thunder River Rapids Ride incident at Dreamworld, which killed four people.

[8] However, the economic fallout from the COVID-19 pandemic resulted in Leviathan's timeline being pushed back to its current opening date of 2nd December 2022.

On August 4, 2022, the official Sea World Facebook page posted a video of the Leviathan on its first test run, showing the train navigating the track.

During late October and early November of 2022, Sea World's social media pages begun to reveal behind the scenes footage of the progress of the coaster.