A crash in the price of wild venison and the arrival of COVID-19 threatened to waste hundreds of animals.
A report has found insufficient planning and fading light also contributed to the collision.
"I was a non-believer that there were any moose left in Fiordland until now."
And it's not the only Great Walk in Fiordland that's being closed.
Almost 200 tourists remain trapped.
The two men were reported missing on Thursday.
It is the only way of accessing the fiord.