Song cycles through a half dozen portals, opening them all in the same spot before stopping and leaving one open. "That should lead you just outside the city gates, tell them that High Priestess Katrina sent you to see Lala about moving in. They'll understand."
The Bunnies all happily pass through, the city guards giving them a friendly welcome once they see it's Bunnies coming through and Lelou waving at them from the other side. When Song said right in front of the gate, he meant it. Ten meters away, on the shoulder of the road, facing the gates. If he'd gotten it any closer he might have given the guards a heart attack.
Once they're all through, he closes the portal and cycles through them a dozen more times, leaving random ones open for a while. It must be the best way to confuse the Divine Transfer's attempts to determine where the portal led.
