Give the Interislander about 3.5 hours dock to dock, and half a day once you count check-in and getting off the boat. That is the honest answer to how long the Interislander takes. It is the ferry across Cook Strait, run by KiwiRail, linking Wellington at the bottom of the North Island with Picton at the top of the South. This Wellington to Picton guide covers the timing, the fares, and the small mistakes that make people miss the boat.
Last updated: 2026-07-27
How long does the Interislander take?
Around 3.5 hours from Wellington to Picton, and most people trim that number in their heads until it bites them.
The middle hour is the open water where the swell lives. It can be flat grey chop and wind, not the postcard. Then you reach the Marlborough Sounds and it slows into quiet cruising past green hills and still water.
Now add the ground time. Check-in closes an hour before departure, and you want to be off in Picton with daylight left if you are driving on. So plan for half a day, not three and a half hours.
The one ferry across Cook Strait
There is a single operator on this route right now: the Interislander, run by KiwiRail. Wellington sits at the bottom of the North Island; Picton is tucked into the Marlborough Sounds at the top of the South. If you are driving New Zealand end to end, you take it because there is no bridge.
The name confuses people. Searchers look up "Cook Strait ferry" as if there is a shelf of companies to compare. There is not, for now.
So when a page tells you to shop around for a cheaper rival, take it with a pinch of salt. Check what is actually sailing on your dates instead. The Interislander runs four sailings across Cook Strait each day, so you get morning and afternoon options both ways.
What a ticket costs
Two questions decide your fare: are you bringing a vehicle, and when are you traveling?
A normal-season adult foot passenger fare runs about NZD $75. A standard campervan fare sits around NZ$220. Peak season and holidays cost more, so book early and do not judge the price at the counter on a busy December morning.
| Ticket type | Rough price | Who it is for |
|---|---|---|
| Adult foot passenger (normal season) | around NZD $75 | No car, flexible dates |
| Car or campervan | around NZ$220 | Road trippers, van lifers |
The vehicle fare is the real cost of the road trip, so budget for it early. If you are still weighing whether to bring wheels at all, read up on traveling New Zealand without a car first. Plenty of people find the bus-and-ferry combo cheaper and calmer than shipping a rental across the Strait.
Should you bring the car or walk on?
Bring the car if the South Island is a driving trip: Kaikoura, the wine country, the West Coast, Queenstown. Drive on, drive off, and your road trip picks up on the other side. That is the whole point of the vehicle fare.
Walk on if you are doing the country by bus, train, and your own feet. A foot ticket costs less than half a vehicle fare, and you skip queuing with the freight.
One honest downside for foot passengers: Picton is small. Sort your onward transport before you land. Do not step off the boat assuming you will figure it out at the dock, because on a quiet afternoon there is not much to figure it out with.
Is the crossing worth the views?
Worth it, yes, but know which part earns it. The open-water middle is not the pretty bit. Those marketing shots of dolphins and dramatic coast are the Sounds, meaning the last hour into Picton or the first out heading north.
That stretch is the reason to sit on the outer deck instead of hiding in the café. On a clear afternoon it is slow and genuinely lovely.
You might see dolphins. You might see nothing but chop. Anyone selling this as a guaranteed whale-watch is selling you a maybe, so treat wildlife as a bonus. If Sounds scenery is your whole reason for coming, a Milford Sound cruise packs more of it into less time, further south. And if you have a morning to spare in the capital first, the climb to Wellington's best lookout gives you the harbour from above.
Catching the ferry without missing it
Picton's vehicle check-in closes 60 minutes before departure, and that window exists because cars and freight take time to load in order. Miss it and you miss the sailing. Here is the order I would run the morning:
- Book your sailing well ahead, especially a vehicle space in summer.
- Check the forecast the day before, not the week before.
- Leave for the terminal early, and count on Wellington traffic being worse than the map says.
- Arrive at least an hour before departure to clear check-in.
- Take an earlier sailing than feels necessary if you have onward driving.
The three things that go wrong are always the same. People turn up at departure time instead of check-in time. They underestimate the drive to the terminal. And they book the last sailing, hit a weather delay, and land in Picton with nothing open for dinner. Build in slack and keep the day loose.
Weather and seasickness on the Strait
Cook Strait earns its reputation. It sits between two land masses that funnel the wind, so a calm Wellington morning can still mean a rough crossing. Check the New Zealand marine forecast the day before you sail.
If you get seasick, a few things genuinely help:
- Take motion-sickness medication before you board, not after you feel ill.
- Sit low and central, where the movement is least.
- Stay on deck with your eyes on the horizon rather than reading below.
- Eat something light first, because an empty stomach makes it worse.
A rough crossing is uncomfortable, not dangerous. The sailings run in conditions that would keep a small boat home, and they cancel when it is genuinely too much. So if yours goes ahead, you are fine.
Who should skip the ferry
Almost nobody, if you are crossing between the islands, because this is the way across. Still, a few situations change the math.
If you are short on time and heading south from Wellington anyway, a flight is faster and sometimes not much dearer than a vehicle fare, minus the car. If seasickness truly wrecks you, weigh a short flight against gripping a rail for three and a half hours.
And if you are only seeing one island this trip, you do not need the crossing at all. Not every New Zealand plan has to touch both. Before you commit to the full-country route, it is worth knowing what New Zealand actually costs.
FAQ
Can I take the ferry from Wellington to Blenheim?
Not directly. The boat lands in Picton, and Blenheim is a short run further south by road or rail. Foot passengers usually connect onward by the scenic train or a bus, so sort that leg before you sail.
Can I bring my dog or cat across Cook Strait?
Pets travel, but not loose in the cabin with you. They ride in your parked vehicle or in a booked kennel space. Arrange it when you book, because room is limited and it is not a same-day request.
How far ahead do summer sailings sell out?
Vehicle spaces fill weeks out in peak season. Foot passengers have more give, though the exact sailing time you want still goes. If your dates are locked, reserve the moment you know them.
Is there food on board?
There are cafés and bars on the ship, so you will not go hungry. It is ferry-café food at ferry-café prices, though. Pack your own snacks and a water bottle if you are watching the budget or your stomach.
Does the ferry connect to trains and buses?
Yes. The timing links up with the South Island scenic rail service on the Picton side, so a foot passenger can step off and carry on without a car. That connection is the backbone of a car-free route through New Zealand.
