From Sunday 21 July enjoy unlimited travel by bus, train and inner-harbour ferries for no more than $50 a week. Terms apply.
Neat. Though I think I skate in just under the threshold... and I bet Fuller's Ferries are excluded. I was wrong:
The fare cap applies to bus, train and inner-harbour ferry services. Inner-harbour ferry services include Devonport, Bayswater, Birkenhead and Te Onewa Northcote Point.