If you’re road-tripping New Zealand in a campervan, at some point you’ll face the Cook Strait — the stretch of water that separates the North Island from the South Island. There’s no bridge. You can’t drive around it. The only way across is by ferry, and knowing what to expect will save you a lot of stress.
Two Ferries, One Strait
Two companies operate the crossing: Interislander and Bluebridge. Both sail between Wellington (North Island) and Picton (South Island).
| Interislander | Bluebridge | |
|---|---|---|
| Crossing time | ~3.5 hours | ~3 hours |
| Frequency | 3–4 sailings/day | 2–4 sailings/day |
| Campervan deck | Yes | Yes |
| Price range (vehicle + 2 pax) | NZ$180–$350+ | NZ$160–$320+ |
Prices vary a lot depending on the season and how far in advance you book. Both are essentially the same experience — pick whichever has better timing or price on your travel date.
Book Early — Especially in Summer
This is the most important advice: book your ferry before you book anything else. In peak season (November to March), sailings fill up weeks in advance, especially for vehicles. If you leave it until the last minute, you may be stuck in Wellington for an extra day or two waiting for a spot.
Off-season (April–October) is more flexible, but it’s still worth booking at least a week ahead to get a good time slot and a decent price. Fares go up as the sailing fills.
Cook Strait Weather: The Real Wild Card
Cook Strait is one of the roughest stretches of water in the world. The channel funnels wind between the two islands, and large swells can appear with little warning. Sailings do get cancelled — it happens several times a season, usually due to swells exceeding safe operating limits.
What this means for you:
- Build at least one buffer day into your itinerary around your crossing date. Don’t book a flight home from Christchurch the morning after an evening ferry in winter.
- Check the weather forecast for Wellington and Cook Strait a few days before you sail.
- Both companies will offer a full refund or rebooking if they cancel the service — you won’t lose your money, but you might lose a day of travel time.
- On rough crossings, seasickness is real. Pack medication if you’re prone, or grab some from a pharmacy in Wellington beforehand.
Getting Your Campervan on the Ferry
Campervans travel on the vehicle deck, below the passenger areas. You drive on, park up, and leave the van for the crossing — you can’t access it during the sailing. Make sure you:
- Grab anything you need for the 3–4 hours before you leave the van (passport, snacks, headphones, jacket)
- Turn off your gas if you’re running a portable stove
- Check your van’s height — most standard campervans fit fine, but very tall motorhomes may need to confirm clearance in advance
- Arrive at the terminal at least 60 minutes before departure (90 minutes in peak season). Late arrivals don’t get on.
The Crossing Itself
Once you’re underway, it’s actually a great experience on a calm day. The Marlborough Sounds at the Picton end are stunning — the ferry weaves through narrow channels with bush-covered hills rising on both sides. Budget an extra 30–45 minutes for this section even after the open water crossing ends.
On board you’ll find a café/restaurant, bar, cinema lounge, and outdoor deck. The outdoor deck is where you want to be when you enter the Sounds — it’s one of those New Zealand moments that catches you off guard.
Wellington: Worth a Day
If you’re heading north from Christchurch and you have time, spend a day in Wellington before you sail. It’s a genuinely great city — good food scene, Te Papa museum (free), and a compact waterfront. Park the van at a holiday park near the port the night before your sailing so you’re not rushing in the morning.
Quick Tips Summary
- Book early — vehicles fill up fast in summer
- Build a buffer day in case of weather cancellations
- Arrive 60–90 minutes before your sailing
- Grab your essentials before leaving the vehicle deck
- Turn off gas appliances
- Go outside when the ferry enters the Marlborough Sounds — it’s worth it
- Check the weather 48 hours before departure
The Cook Strait crossing is one of those things that sounds logistically annoying but ends up being a highlight of the trip. On a clear day, sailing into Picton through the Sounds is genuinely beautiful. On a rough day, it’s a story you’ll be telling for years.
Travelling in one of our campervans? We can help you plan your routing — including the best timing for the ferry crossing depending on whether you’re starting in Christchurch, Auckland or Queenstown. Get in touch before you book.
