Koura of course being the maori word for crayfish. Kaikoura then being 'crayfish food' with kai meaning food is a place famous in New Zealand for being the home of the crayfish and nowhere is more famous than the roadside caravans of 'nin's bin' and 'cays crays' for that stuff. A spot on the main highway north of christchurch where you can pull over and get your fill...
Cays crays is also a tune by darlings of the indy dance set, Fat Freddies Drop
remixed to sublime perfection by darlings of the dubstep set, digital mystikz
check it here and this is the original (live)