There's one ferry across the Cook Strait right now: the Interislander, run by KiwiRail. It links Wellington and Picton in about 3.5 hours across 96 kilometers (52 nautical miles). If you're driving New Zealand top to bottom, you take it because there's no bridge. On foot, the real question is whether you treat it as transport or a slow scenic ride. It's both, and where you sit decides which.
Last updated: 2026-07-12
What is the Cook Strait ferry, exactly?
It's the sea link between the North Island and the South Island. Wellington sits at the bottom of the North; Picton sits at the top of the South, tucked into the Marlborough Sounds. The Interislander runs four sailings across Cook Strait each day, so you get morning and afternoon options both ways.
The name trips people up. Folks search "the Cook Strait ferry" as if it's a shelf of operators to compare. For now it's one company on this route. So when a page tells you to shop around, take it with a pinch of salt. Check what's actually sailing on your dates before you hunt for a cheaper rival that isn't there.
How long does the Interislander take?
About 3.5 hours dock to dock. That's the honest number, and most people shave it down in their heads.
The good bits are the start and the end. Leaving Wellington, you cross open water where the swell lives, so the middle hour can be flat grey chop and wind. Then you reach the Marlborough Sounds and it turns into slow, quiet cruising past green hills and still water.
Now add the ground time. Check-in closes well before departure, and you'll want to be off the boat before the light goes if you're driving on. Call it half a day, not three and a half hours.
What a ticket costs and which one you need
Two questions, really: are you bringing a vehicle, and when are you traveling?
A foot passenger adult fare runs $82.00 in normal season and $92.00 in peak season. A car or campervan pushes you into the $230.00 to $255.00 range depending on the vehicle. Here's the short version:
| Ticket type | Rough price | Who it's for |
|---|---|---|
| Adult foot passenger (normal) | $82.00 | No car, flexible dates |
| Adult foot passenger (peak) | $92.00 | No car, summer or holidays |
| Vehicle (car or campervan) | $230.00 – $255.00 | Road trippers, van lifers |
The vehicle fare is the real cost of the road trip, so budget for it early instead of flinching at the terminal. If you're still weighing whether to bring a car, read a bit on getting around New Zealand without a car first. Plenty of people find the bus-and-ferry combo cheaper and calmer than shipping a rental across.
Book ahead. Sailings fill in peak season, and walk-up prices are not your friend on a busy December morning.
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's the whole point of the vehicle fare.
Walk on if you're doing the country by bus, train, and your own feet. A foot ticket costs less than half a vehicle fare, and you skip measuring your campervan and queuing with the freight. Grab a rental in Picton if you only need wheels for the South.
One honest downside for foot passengers: Picton is small, so sort your onward transport before you land. Don't step off assuming you'll figure it out at the dock.
Is the crossing worth it for 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: 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's 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. Treat wildlife as a bonus, not the plan, and you'll come off happy.
If Sounds scenery is the whole reason you're here, a Milford Sound cruise packs more of it into less time, further south.
When to check in, and what actually goes wrong
Be at the terminal 60 minutes before departure. That's the recommended check-in window, and it exists because vehicles and freight take time to load in order.
What goes wrong is usually one of three things. People turn up at departure time instead of check-in time and miss the boat. People underestimate Wellington traffic getting to the terminal. And people book the last sailing, hit a weather delay, and land in Picton with nothing open for dinner.
So build in slack. Take an earlier sailing than feels necessary if you've got onward driving, and keep the day loose.
Weather and seasickness, handled calmly
The 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 forecast the day before, not the week before.
If you get seasick, a few things 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. 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's genuinely too much. So if yours goes ahead, you're fine.
Who should skip the ferry
Almost nobody, if you're crossing between the islands, because this is the way across. Still, a few situations change the math.
If you're short on time and flying between Wellington and the South 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 three and a half hours gripping a rail. And if you're only seeing one island this trip, you don't need the crossing at all. Not every New Zealand plan has to touch both.
For the money side of all this, check what New Zealand actually costs before you commit to the full-country route.
FAQ
Can I bring my dog or cat on the ferry?
Pets travel, but not loose in the cabin with you. They ride in your vehicle or in a kennel space, and you arrange it at booking. Sort it early, because room is limited and it isn't a same-day request.
How early do sailings sell out in summer?
Peak season fills vehicle spaces well ahead, sometimes weeks out. Foot passengers have more give, but the sailing time you actually want still goes. If your dates are locked, book the moment you know them.
Can I change or cancel my booking?
Usually yes, though it hinges on the fare type you chose. Cheaper fares tend to lock you in; flexible fares cost more and let you move. Read which one you're buying before you pay, because that's the gap between a free change and a lost ticket.
Is there food on board, or should I pack my own?
There are cafés and bars on the ship, so you won't starve. That said, it's ferry-café food at ferry-café prices. Bring your own snacks and a water bottle if you're fussy or watching the budget. Something plain also sits kinder on a queasy stomach.
Does the ferry connect to trains or buses?
Yes. KiwiRail runs a scenic train on the South Island side, and the timing is built to connect, so a foot passenger can step off and carry on by rail. If you're piecing together a car-free route, that link is the backbone of it.
