But Canterbury also has a long league heritage. They dominated Auckland in the early 1990s, and in the 1950s and 1960s Canterbury and West Coast players regularly formed the Kiwis pack. The likes of Lewis Brown (Manly), Kodi Nikorima (Broncos) and Matt Mcllwrick (Sharks) have reinforced local NRL pride recently.
At South New Brighton school yesterday, Penrith players, including Kiwis Dallin Watene-Zelezniak and Peta Hiku, delivered an educational talk and gave out T-shirts before being mobbed for autographs.
On Wednesday evening, the entire Penrith squad received a spine-tingling haka from more than 100 juniors at the Hornby Panthers, after the NRL side had earlier trained on the hallowed turf of Christchurch Boys' High School.
Privately, Penrith have been overwhelmed at the reception, with one official commenting that they "wouldn't get that kind of enthusiasm at many places around Australia".
The players are also impressed.
"It's great to see the passion for the sport and it's good to give a bit back," said Penrith and Kangaroos forward Trent Merrin. "There's obviously potential here."
"It's good for the game," said Hiku, surrounded by pupils wanting papers, caps and shoes signed. "Hopefully this is the start of something."
The Warriors arrive in the city this afternoon, with more community activities scheduled for both clubs before tomorrow's match.