Walt Disney World’s employees, their friends and family were given a preview Sunday of their newest water light show.

“Rivers of Light” was originally scheduled to open in April but was delayed because of technical problems. The 18-minute show did require a reboot when two floats stopped during the show but the technology worked for the high-shooting water projections at Animal Kingdom, according to Disney blogger John Frost.

Audience members were not allowed to photograph or video the water pageant. But watching a media preview online, it resembles EPCOT’s “IllumiNations: Reflections of Earth,” minus the fireworks.

Rivers of Light is a first for Animal Kingdom, which has expanded its hours to match evening entertainment at other Disney parks. Disney characters or storylines are not part of the show.

No opening date has been announced. The cast preview provides an opportunity for Disney’s operations team to work through any kinks before the attraction is offered to the public.