Jerudong Park Playground was once the world's largest free amusement park, built by the Sultan in the 1990s at a cost of 1 billion dollars. Today it still offers family-friendly rides including a Ferris wheel, drop tower, go-kart track, and bumper cars. A separate water park features slides and pools. Lively evening atmosphere especially on weekends. A quieter alternative to crowded theme parks elsewhere. The park has a nostalgic charm with its mix of old and new attractions.