Crossing the Cook Strait between Picton and Wellington involves two main operators: Interislander and Bluebridge. As of 2026, the cost for a standard passenger vehicle (up to 5.5 meters in length) typically ranges from $210 to $440 NZD, depending on how far in advance you book and the flexibility of your fare. This price generally includes the driver, but additional passengers will incur a separate "walk-on" fee, which usually sits between $65 and $120 NZD per adult. Prices fluctuate significantly based on peak travel periods, such as the summer holidays (December to February) and Easter, when demand is highest. Booking a "Web Saver" or "Early Bird" fare can yield the lowest prices, while "Easy Change" or fully flexible tickets sit at the top end of the spectrum. It is also important to note that larger vehicles, such as campervans or cars with trailers, are charged based on total length and height, which can easily push the total cost above $500 NZD. Both companies offer multiple daily sailings, with the journey taking approximately 3 hours and 30 minutes.