Belgian Railways (NMBS/SNCB) operates a train from Antwerp to Walibi Belgium hourly. Tickets cost $8 - $13 and the journey takes 50 min. Belgian Railways (NMBS/SNCB) also services this route every 30 minutes.
From Antwerpen Centraal train to Leuven, train to Bierges, then walk to Walibi Belgium. 2 h 2 min 11€. From Antwerp taxi to Walibi Belgium. 43 min 182€. From Antwerp drive to Walibi Belgium. 43 min 8€.