Most of New Zealand's backcountry has no mobile coverage at all. The moment you leave a main road, you should assume your phone is a torch and a camera, not a phone. Getting found when things go wrong isn't about luck — it's about a handful of decisions you make before you even leave the car park.
The Land Safety Code — Share Your Plans
The NZ Mountain Safety Council, DOC, Police, LandSAR, and the Rescue Coordination Centre New Zealand all back the same simple message: tell a trusted person where you're going and when you'll be back. If they don't hear from you by an agreed time, they call 111 and ask for the police.
There are several easy ways to do this:
- Use PlanMyWalk.nz, a free tool built specifically for this.
- Text, email, or simply tell someone your plans directly.
- Fill in the Intentions Book at any DOC hut you pass — even if you're not staying the night.
This single habit is one of the biggest factors in how fast a search and rescue response can actually find you.
Personal Locator Beacons (PLBs)
A PLB is the single most effective piece of communication gear for New Zealand's backcountry. It's a small emergency beacon that, once activated, sends a distress signal on the international 406MHz frequency straight to the Rescue Coordination Centre New Zealand (RCCNZ) — no subscription, no monthly fee, no phone reception required.
How it works
Once triggered, the signal is picked up by satellite, relayed to a ground station, and passed to RCCNZ, who coordinate the rescue response. GPS-enabled beacons narrow your location down to under 100 metres; non-GPS models rely on a secondary 121.5MHz signal that rescuers home in on once they're in the area, which can mean a wider initial search radius.
Using one properly
- Register your beacon with RCCNZ — an unregistered beacon still triggers a response, but slows things down.
- Keep it clipped securely on your person, not buried in a pack.
- Beacons need a clear view of the sky to work — avoid activating in gorges or under heavy tree cover if you have any choice.
- Once activated, don't turn it off. Stay where you are unless staying is genuinely more dangerous than moving.
- If it's accidentally triggered, contact RCCNZ (0508 472 269) or Coastguard (0800 BOATIE) immediately to stand it down — there's no penalty for an honest accidental activation.
If you're unsure whether a situation is serious enough to activate — the advice from people who coordinate these rescues is consistent: it's better to activate and be told you didn't need to than to wait too long.
Visual and Sound Signals
When you don't have a beacon — or while you're waiting for help to arrive — old-fashioned signalling still works, and it costs nothing.
- Whistle: three sharp blasts, repeated at intervals, is the internationally recognised distress signal. A whistle carries much further than shouting and won't wreck your voice.
- Mirror or reflective surface: angled sunlight flashes are visible from aircraft at a genuinely surprising distance — a phone screen or a piece of foil can work in a pinch.
- Ground signals: large shapes made from rocks, logs, or clothing laid out in an open space are visible from the air. An "X" is the traditional symbol for "need medical assistance"; a large "V" signals "need assistance."
- Fire and smoke: three fires in a triangle is a recognised distress pattern, and smoke is far more visible than flame from a distance.
Know Before You Rely on It
Two things trip people up more than anything else. First: a satellite messaging app like WhatsApp cannot call New Zealand's 111 emergency number, even over a satellite connection — you'll need someone else, like your emergency contact, to make that call for you. Second: mobile coverage in New Zealand's backcountry is patchy at best and frequently non-existent, even in areas that look "close to town" on a map. Plan around both of these realities rather than discovering them mid-emergency.
Rendezvous Points — Plan This Before the Grid Goes Down
Comms specialists who train for this stuff put communication ahead of food, water, and shelter in the first minutes of a disaster — because these events hit fast and chaotic, and the first thing everyone reaches for is their phone to check on the people they love. Don't count on that working. After the Christchurch earthquakes, cell towers were overwhelmed for hours with SMS and calls stuck in queues. The same thing happened up and down the East Coast during recent floods — no signal, for days, in some areas. Big concerts and events show you a small version of this constantly: too many phones, one network, and it buckles.
The honest planning assumption is: no network, no wifi, no signal, nothing. So build a plan that doesn't depend on any of it. That means agreeing, in advance, on physical rendezvous points with the people you'd want to find:
- Primary rendezvous point: somewhere close to home, but outside it — in case the disaster is a house fire, a collapse, or something that makes home itself unsafe.
- Secondary rendezvous point: somewhere further out, within walking distance, for if the primary point isn't reachable or safe either.
It's also worth finding out whether your kids' school has its own plan for reaching you if the grid goes down entirely. If nobody there can answer that question clearly, that's useful information too — a prompt to ask, and to make sure everyone involved actually knows the plan.
A Radio Schedule Beats Constant Scanning
If you're relying on a battery or solar radio to stay in touch with a group, leaving it on constantly drains power fast for no real gain. A simple fix used in survival training: agree on a schedule — for instance, every three hours on the hour — where everyone tunes to an agreed channel and tries to make contact for a short window, then switches off again. It keeps the radio usable for days instead of hours, and everyone knows exactly when to expect to hear from the others.
Stopping to Stay Together
Getting found starts with not getting separated in the first place. Stop and regroup at every track junction, river crossing, or bridge — don't assume everyone's behind you. Most "lost" situations in groups start with someone quietly falling behind or wandering ahead without anyone noticing for twenty minutes.
The Kit That Backs It Up
A PLB, a whistle, and a small mirror or reflective panel together weigh next to nothing and take up almost no space in a pack — yet they cover three completely different ways of being found. None of them require a phone signal, a charged battery beyond the beacon's own, or a stroke of luck.
Come practise being found before you ever need to be.
Register Your InterestSourced from the NZ Mountain Safety Council's Land Safety Code, the Department of Conservation, and the Rescue Coordination Centre New Zealand. Register any personal locator beacon directly with RCCNZ.