StarParks/Grévin & Cie
Following financial difficulties and other issues, Six Flags announced the sale of their European Parks division to an undisclosed buyer on 15 March 2004. The purchaser was later revealed to be the London-based Palamon Capital Partners, who rebranded the chain as StarParks. The Warner Bros. license was not included in the sale. On April 16, Palamon announced that the park would rebrand back under the Walibi name for the 2005 season, following a fan-cast polling vote. At the end of the park's 2004 season on 7 November, it was announced that Six Flags Belgium would become Walibi Belgium upon the start of the park's 2005 season on 26 March, while Walibi would return as the park's mascot (although he had a semi-return at Aqualibi near the end of 2003(); having been on a four year "world tour" and being handed back the keys to the park from Bugs Bunny. A newly introduced group of characters (deemed his "world tour" friends) and a female counterpart named Walibelle were also introduced as part of the park's new storyline. These characters would appear in Walibi Folies, which would rebrand from Bugs Bunny Land, while the 3D cinema would replace the Looney Tunes show with SpongeBob SquarePants 4-D. Walibi's promotions director Dominique Fallon had proclaimed that former owner Eddy Meeùs had cited the Six Flags rebranding as a "mistake".
In March 2006, Palamon Capital Partners sold the Walibi chain, including Walibi Belgium, to Grévin & Cie, a subsidiary of Compagnie des Alpes. This was done for Palamon to focus its operations solely on sister park Movie Park Germany.
From 2012 to 2014, the Aqualibi waterpark underwent a major refurbishment, costing €11 million (US$16 million).
In March 2014, the park's license for Lucky Luke was not renewed.
