Hundreds of New Zealand plane passengers started arriving in Sydney on Friday as part of a new trans-Tasman travel bubble amid a rapidly falling growth rate in cases at the epicenter of Australia's coronavirus outbreak.

In a tentative re-opening to international tourism, travelers on the approved flights won't be required to quarantine in Sydney, authorities said.

The arrangements, however, are not yet reciprocal, with New Zealand requiring arrivals to be quarantined for two weeks under supervision at the cost of 3,100 New Zealand dollars ($2,045) for the first person and more for additional family members.