No, it’s not fish. A message from the Council:

“Commuters and train users, Metlink are progressing to paper-free! [but not plastic-free —Eds] Snapper will be available on the Kapiti Line from Saturday 12 November, and on all other lines from 27 November. Just tag on and off for every journey!

“Commuters and train users, Metlink are progressing to paper-free! Snapper will be available on the Kapiti Line from 12 November, and on all other lines from 27 November. Just tag on and off for every journey! The new Snapper 30-day Rail pass is also coming to revolutionise your rail journeys – same price, more convenience. Explorer passes are still available too; you’ll be able to load them on to a Snapper card, activated on the day you first tag on, then tag on and off each service as you go. And if you like to use the 10-trip passes, one trip on a train tagging on and off with a Snapper card is the same as one clip on a 10-trip ticket.
 
“You will still be able to use cash to buy a single ticket onboard.”