Kaiarahi is one of Interislander’s ferry. Seen here sailing into Queen Charlotte Sound. We had to wait about half an hour our ferry for the Kaiarahi to leave Picton Harbour. Taken from another Interislander ferry looking north, back towards the island we had come from. Going between New Zealand’s North Island and South Island there are a couple of options. Flying is the quickest and most convenient. If you want to take a vehicle with you, the ferry is the way to go. There are two companies, Blue Bridge and Interislander. I’ve done the crossing half a dozen times now, it takes around 3 to 4 hours. A lot of this depends on the weather. The Cook Strait can have high winds and waves. We got lucky with the weather on the morning we sailed south. Even seeing some dolphins as we entered the Malborough Sounds.