The cruise ship berth was officially opened by Mayor Lianne Dalziel yesterday.
The Covid-19 border restrictions have impacted the 2020/21 cruise season, but the $67 million berth's completion is a significant milestone, said Lyttelton Port Company chief executive Roger Gray.
The harbour has planned ahead for the next cruise season, O'Sullivan said.
He said the large berth means more people can explore Lyttelton and Christchurch.