A few options I found
Chch -> Kaikoura one way is $59 so comes down to $47.20
Blenheim -> Kaikoura one way is $59 so comes down to $47.20
Chch -> Blenheim one way is $79 so comes down to $63.20
Chch <-> Kaikoura Return is $118 so would bring that down to $94.40 Return
Chch <-> Blenheim Return is $178 so that would come down to $142.20
Chch <-> Picton Return is also $178 so also comes down to $142.20
Could make a good Christmas gift for someone
Copy Paste from the Website below
*Limited to residents of Christchurch City • Waimakariri • Hurunui District Council • Kaikoura • Marlborough Regions
*Only for Travel between dates 1st - 27th April
*Has to be booked in person at the below locations
Christchurch Railway Station • Interislander Picton Terminal • i-Site Picton • i-Site Blenheim • i-Site Hurunui • i-Site Kaikoura • i-Site Christchurch • AA Touring Blenheim • AA Touring Christchurch
PROOF OF RESIDENCY MUST BE PROVIDED WHEN BOOKING (E.G. UTILITY BILL).