The South Island itinerary that actually fits your days

The three loops, side by side

Ten days is the first length that holds the glaciers, Fiordland and Mount Cook together. Seven days does the southern lakes and the fiord beautifully and nothing else. Fourteen adds the coast and the top of the island, and the spare day that turns a rained-off Milford into a walked one.

The rules that hold all three together

• Never average more than three hours of driving a day across the trip. The stops are the holiday. Rural highways here run at 70 to 80 kilometres an hour once you allow for bends, one-lane bridges and the campervan ahead; add a third to every map time.
• Two nights beats one night. Every loop above has at least three two-night stays, and the ten and fourteen day versions have more.
• Fly into one city and out of the other where the fares allow. Christchurch in and Queenstown out saves a full day of backtracking and ends the trip on the biggest scenery.
• Milford Sound is a 240 kilometre round trip from Te Anau with no fuel past the town. Treat it as a full day, and treat Te Anau, not Queenstown, as its base.

Seven days: the southern lakes week

Queenstown in and out, three bases, two nights each: Queenstown for Glenorchy and one big activity, Te Anau for Milford Sound, Wanaka for the lake and a walk. No day over three and a quarter hours on the road, and three days with no driving at all. It is the classic trans-Tasman week because the direct flights from Sydney, Melbourne, Brisbane and the Gold Coast land at lunchtime and you are on the lakefront by three.

What it leaves out on purpose is the West Coast and Mount Cook. Squeezing either into seven days means back-to-back four hour drives, and we would rather you saw the places you sleep. The week, day by day includes the winter version and the Doubtful Sound question.

Ten days: the loop plus Fiordland and the glaciers

Ten days is the sweet spot for a first South Island trip. From Christchurch: the TranzAlpine or Arthur’s Pass to the West Coast, two nights at Franz Josef, the Haast Pass to Wanaka, the Crown Range to Queenstown, two nights in Te Anau for Milford, then Mount Cook and back across the plains. From Queenstown: the same lakes and Fiordland with Mount Cook and Tekapo in place of the glaciers, and no day over five hours.

The 10 day South Island itinerary has both starts written out with every leg timed.

Fourteen days: the full circle

Two weeks lets you run the complete circle and finally include the top of the island: Kaikoura for the whales, Nelson for Abel Tasman and the Marlborough cellar doors, Punakaiki’s Pancake Rocks on the way down the West Coast, then everything the ten day loop holds with a second night in Wanaka. Thirteen nights, nine bases, about 31 hours of driving over nine days.

Fourteen days also buys weather insurance. Milford gets rain on more than 200 days a year and about seven metres of it, according to Southern Discoveries, and with a fortnight the cruise day can move to the better forecast. It is also the first length where a Great Walk fits: the Routeburn replaces the Queenstown to Milford days almost exactly. The full circle, day by day has the southern version through Dunedin and the Catlins as well.

What the forums say about the choice

The South Island threads on the New Zealand travel subreddit divide into two kinds: people asking whether both islands fit in ten days, and people posting a fortnight as thirteen single nights. The replies to the first are consistent.

10 days I would just pick one island and explore as much as you can there. This itinerary is super full.

r/newzealand_travel, 10 Day Trip to New Zealand

The second kind gets told what we would tell them: a chain of one-night stops turns two weeks into packing practice. Our rule for a fortnight is nine bases, and the loops above are built that way.

What to cut when you must

1. Cut Dunedin and the Catlins first on short trips, not because they are lesser, but because they anchor a second visit well.
2. Cut Christchurch sightseeing before you cut a second night anywhere alpine. It is a good city best enjoyed when you are not itching for mountains.
3. Never cut the second Te Anau night to day-trip Milford from Queenstown. Thirteen hours on a coach, ten of them road, is how the fiord gets remembered as a bus.

The Taste of the South Island runs the short loop with every bed confirmed, the Coastal Explorer is the fortnight from Queenstown to Christchurch, and the Essential Southern Extravaganza is three weeks on the island with the weather shuffling handled for you.