The spiel the woman gives which is written in a way that is trying very hard to give deeper meaning to this, the characters awkwardly coming out and standing there, sometimes delivering their own script that was clearly thrown together (Victoria just recites the pre-show, for example)... all of it. Also the whole "Celestians" thing which Universal spun up for Celestial Park but really isn't portrayed anywhere. It's giving vibes of the "Waturi" people of Volcano Bay, something they emphasized heavily in promotions and previews but you hardly ever hear referenced anymore.
It also isn't practical to do this as people will likely not be "rope dropping" Berk, for example.
Which is why I say an audio cue, land-specific score, maybe a pre-recorded spiel, and the effect of the portal being activated would be cool and sufficient for a daily thing.