The changes were due to cruise ships around the world changing their itineraries and a five-day gap popping up as a result of this.
The cruise ship chose Tauranga as it regularly visited the location and just asked for an extended layover.
Port of Tauranga chief operating officer Leonard Sampson said the layover was a unique event and local businesses will benefit from having several hundred crew members staying in the Bay of Plenty.
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"The vessel had been operating in the South Pacific all summer and all crew on board meet health authority requirements," he said.
All cruise and cargo ships visiting Port of Tauranga strictly follow Ministry of Health regulations regarding the health status of the people on board.
Because of the Covid-19 outbreak, ship captains must also declare whether the ship or anyone else on board has been in a Covid-19 hot spot within 14 days.
Cruise Lines International Association members were currently denying boarding to any crew or passengers that had been in or transited through China, Hong Kong, Macau, South Korea, Iran or northern Italy within the past 14 days.