KiwiRail is unhappy people don't have to produce a vaccine passport when they board.
Harsher fines and more restrictions could be on the card for freedom campers as the government tries to flush out the badly behaving ones.
The variant already has industry members worried, despite a lack of detail.
They're concerned their appeal will be tainted by the need for seven days' isolation.
"The Tourism ITP will be ground-breaking."
It appears Kiwis will never forget the underarm.
A sustainable tourism economy means the system remains in its current state indefinitely - so income levels, biodiversity and cultural values are sustained.
The Milford Track faced unprecedented demand this year.
With the threat of empty shelves, this could be the answer.