A trip across the Cook Strait has been far from straightforward for nearly 600 passengers on the Interislander Ferry today.
The Interislander sailing left Wellington at 9am and is still bobbing around in Queen Charlotte Sound.
75 knots an hour over a 30 minute period are proving ferocious according to Picton duty harbour master.
Walter Rushbrook is the general manager of the Interislander and joins Lisa Owen with the details.