How to leave a trip plan every time, run S.T.O.P. when something goes wrong, fix the most urgent need first, decide whether to stay put, and signal in 3s so searchers walk straight to you, in any climate.
Doctor's Note: If you have a heart or lung condition, diabetes, or take medicines that affect balance or alertness, talk to your doctor before a remote trip. A hands-on wilderness first aid course is the best way to learn cold and injury care; the IFRC asks anyone who lives in or visits remote places to know how to contact local rescue [1].
If you are lost or hurt right now and have signal, call your emergency number: 911 in the US and Canada [2], 999 or 112 in the UK [3], 000 in Australia, where 112 from a mobile also reaches Triple Zero [4]. Say where you started, your last known spot, and the colours you are wearing [2]. Then stay where you are [2].
Why Calm Is the First Tool
This article covers the five moves that get lost or stranded people home. Step 1 is done at home: a trip plan and a turnaround time, so a search starts on time and in the right place. Steps 2 to 5 are done on the spot: S.T.O.P. to get your thinking back, the rule of 3s to fix the right problem first, the stay-or-move decision, and the signal of 3. They work the same in a desert, a rainforest or a snowfield. Climate-specific shelter, water and travel skills have their own articles, listed under Go further.
Step 1: Leave a Trip Plan and Set a Turnaround Time
SKILL: You can leave a trip plan (route, companions, return time, when to call for help) with someone not coming, and set a turnaround time with daylight to spare.
WHY THIS MATTERS
Nobody starts searching until somebody knows you are missing. In a study of 3,287 people searched for in Oregon over 7 years, 93% to 95% were found alive, and a cut-off of 51 hours of search time captured about 99% of the survivors [6]. The authors called search a time-critical event [6]. Every hour between "they should be back" and "someone calls for help" comes off that window.
A plan also tells searchers where to look. The US National Park Service asks you to fill out a trip plan and leave it with a trusted contact who is not going on the trip [2]. The US Forest Service asks for exact details: the trailhead where you park, the trail plan, and when you plan to return [9]. The IFRC's 2025 first aid guidelines give the same advice for anyone venturing to a remote place: make sure someone knows your route and when you expect to be back [1].
The turnaround time protects the other end of the day. Mountain Rescue England and Wales notes that many accidents happen at the end of the day, when both you and your phone are low on energy [3], and asks you to plan the route for the time of year, the terrain and your group's abilities, and to be ready to change it [3].
- Write the plan. Before every trip, text or write down for one person: the trailhead or start point, your route and any side trips, who is with you, what you are wearing and carrying, and your return time [2][9].
- Set the call time. Agree the exact time they should call for help if they have not heard from you, and the number to call. Write both into the message, so they do not have to decide under stress.
- Name the contact. The contact must be someone not on the trip [2]. A group chat where everyone is on the hike does not count.
- Set the turnaround time. Before you start, work out when the light goes and pick a time to turn back that gets you out before dark, allowing for a slower return when tired [3]. Write it in the plan.
- Keep it. Turn at that time even if the top or the lake is close. Change the route if the weather or the group's energy is worse than expected [3].
- Close the plan. Message "back safe" the moment you finish, so the plan never becomes a false alarm.
If you do not come back, help starts on time and looks in the right place, inside the window when most people are found alive [6].
Step 2: Do S.T.O.P. Before You Decide Anything
SKILL: You can stay calm when things go wrong with S.T.O.P. (Stop, Think, Observe, Plan): sit, drink, eat a snack and breathe out slowly for about 5 minutes before deciding.
WHY THIS MATTERS
Being lost is frightening, and fear changes how you think. In interviews and a review of more than 800 Nova Scotia lost-person reports, almost every lost person admitted to being badly upset [7]. Strong emotion scattered their thinking, and fear pushed them to move, often faster, rather than stay where they were [7]. Experienced outdoor people were not protected [7].
S.T.O.P. is the answer the US Forest Service teaches: as soon as you realise you may be lost, stop, stay calm and stay put, because panic is your greatest enemy [9]. The National Park Service puts it as "stop and breathe" and calmly assess [2]. Slow belly breathing lowered stress in all 3 studies of a small systematic review, though the evidence is low certainty [10].
- Stop. The moment you are unsure of the way, stop walking [9]. Sit on your pack, out of the wind if you can.
- Reset the body. Drink a few mouthfuls of water and eat a snack [8]. Then breathe slowly from the belly for about 5 minutes, letting each out-breath be slow [10].
- Think. Go back over how you got here. What landmarks should you be able to see? Do not move until you have a specific reason to take a step [9].
- Observe. Check what you have: daylight left, weather, injuries, water, food, layers, phone battery and signal. If you are on a trail, stay on it [9].
- Plan. Come up with a few possible plans, think them through, then act on one [9]. Say it out loud. If you are not extremely confident of the route, the plan is to stay put [9] (Step 4).
Your first decision is made by your thinking brain, after 5 minutes of rest, water and food, instead of by the urge to walk faster.
Step 3: Rank Your Needs With the Rule of 3s
SKILL: You can rank survival needs by the rule of 3s (air, shelter, water, food): in cold or wet, get out of wind and rain and off the ground first.
WHY THIS MATTERS
The rule of 3s is a rough guide, not a measured limit: about 3 minutes without air, 3 hours exposed in harsh weather, 3 days without water and 3 weeks without food. Its job is to stop you fixing the wrong problem first. Food feels urgent but is the least urgent; water matters within days, as people survive only days without it [11].
Exposure is usually the fastest threat. Accidental hypothermia can happen in any season and in most climates, with cold and wet environments posing the greatest risk [8]. A large amount of heat can be lost to the ground by conduction [8], which is why the guideline insulates people from the ground [8]. Wind adds to the loss, and the guideline uses a windproof layer in windy conditions [8]. The IFRC's advice is to keep clothing dry, and to change into dry clothing as soon as possible if it gets wet [1]. The Park Service's order when you are waiting for help is the same: find shelter from sun, rain or snow, then put on extra layers as soon as you begin to feel cold [2].
- Air and bleeding first. Check that everyone is breathing and has no serious bleeding or injury.
- In cold, wet or wind, warmth comes next. Put on every layer, a hat and a windproof layer now, before you shiver hard [2][8].
- Get out of the wind and rain. Use rocks, dense trees, a hollow or a tarp [2].
- Get off the ground. Sit on your pack, a foam pad, branches or leaves, never bare ground or snow [8].
- Keep dry. Change out of wet clothes as soon as you can [1], and avoid sweating: slow down, open layers before you overheat.
- Then water. Drink regularly from what you have [12]. In heat, rest in shade to cut sweating.
- Food last. Eat to keep up energy [8], but you can go weeks without it.
You spend your energy in the right order: out of the weather and off the ground, then water, then food.
Step 4: Decide to Stay Put and Be Easy to Find
SKILL: You can decide to stay put when lost: near the trail in open ground with bright colours spread out, moving only for rising water, wildfire or deadly exposure.
WHY THIS MATTERS
The Park Service's rule is simple: retrace your steps only if it is safe to do so; if you cannot, stay put, because changing location makes it hard for rescuers to find you, and move only if there is an immediate threat to your life [2]. The Forest Service adds that if you are not extremely confident of the route, it is always better to stay put, and that you should stay in place at nightfall, when injured or near exhaustion [9]. Help can take hours or days to arrive [2].
Very few people follow this. Lost people who try to walk out cross-country rarely succeed [7]. Most lost people are eventually found in one place, but usually because they were exhausted, asleep or unconscious, not by choice [7]. Of more than 800 Nova Scotia cases, only 2 stayed put on purpose: an 11-year-old taught Hug-a-Tree at school, and an 80-year-old who sat down within 5 minutes of being turned around, 100 metres from where she entered the woods [7].
Where you wait matters as much as staying. In 10 field experiments in North America, how far away searchers could spot a person set how wide a strip each search pass covered, and highly visible targets gave each pass the widest coverage [13]. The Park Service asks you to wear bright clothing to be easier to see [2].
- Decide. If you are not sure of the way back, stay [9]. Stay without question at nightfall, when hurt or exhausted [9].
- Pick the spot. Choose the trail itself or the nearest clearing beside it, where you can be seen from the path and from the air. Stay out of thick brush.
- Spread colour. Lay out bright clothing, a pack cover or an emergency blanket where it can be seen from the path and the air [2][13].
- Settle in. Shelter, layers, off the ground (Step 3). Then rest and save energy [2].
- Know the 3 reasons to move. Leave only for an immediate threat to your life [2]: rising water, fire coming toward you, or exposure that will kill you where you are. Move the shortest safe distance, then stop again.
- Answer. When you hear voices, whistles or engines, answer with your whistle (Step 5).
- Teach children Hug-a-Tree. If lost, hug a tree and stay put; a big rock or bench works the same [14].
You are where searchers look first, visible from the path and the air, with your energy saved.
Step 5: Carry a Lighter and Whistle, and Signal in 3s
SKILL: You can signal for rescue in 3s (3 whistle blasts or flashes, pause, repeat) with a pocket lighter and whistle, lighting a signal fire only where safe.
WHY THIS MATTERS
Shouting is tiring and does not carry far. The Park Service says a whistle helps people find you and saves the energy you would spend yelling: blow 3 times, take a break, and blow 3 times again [2]. With a flashlight, flash the SOS pattern: 3 quick, 3 slow, 3 quick, and use it wisely because it drains the batteries [2].
In the UK, mountain rescue uses a different count: 6 short blasts or flashes in quick succession, repeated at one-minute intervals [3]. Keep going until someone reaches you and do not stop because you hear a reply, as the team may be using your blasts to find you [3].
- Pack it once. Put a whistle on a cord and a lighter in the pocket of the jacket you always hike in, and leave them there.
- Use your local count. In North America, 3 blasts, pause, 3 again [2]. In the UK, 6 blasts repeated each minute [3]. Any repeated pattern still says "help".
- Keep a rhythm. Signal often, rest between sets, and keep going after you hear an answer [2][3].
- At night, use light. Flash SOS with your torch or phone light in short bursts to save battery [2].
- Fire only where safe. Light a small signal and warming fire only where fire is allowed and the risk is low, never in fire season or dry, windy conditions [2].
Searchers can hear you and see you, and you have saved your voice and energy for the wait.
Myths
Myth: "Follow a stream downhill and you'll reach help." In Nova Scotia it more often led lost people to a remote, bug-filled swamp, and people who had been lost several times trusted it less [7].
Myth: "Experienced hikers don't panic." Almost every lost person interviewed was badly upset, including experienced outdoor people [7].
FAQ
Should I walk out if I'm lost? Only if it is safe and you are sure of the way, or staying is more dangerous; otherwise stay put [2][9].
Can I rely on my phone? Use it if you have signal, but save the battery [2]. Carry a whistle anyway. In the UK you can register for emergency SMS before you go [3].
How do I prepare my kids? Teach the Hug-a-Tree rules: tell an adult where you go, stay put if lost, keep warm and dry [14], and answer when called.
Skill Check
| Skill | Starting | Solid | Strong |
|---|---|---|---|
| Trip plan | 0 or 1 of your last 5 trips had a plan | 3 or 4 of 5 | All 5, plus a turnaround time you kept |
| S.T.O.P. | You know 1 or 2 steps | All 4 steps | All 4, and you have practised the 5-minute routine on a trail |
| Rule of 3s | Wrong order for a cold, wet evening | Right order for one scene | Right order for both cold-wet and hot-dry, with the reason |
| Stay or move | You would keep walking | You would stay put if unsure | You stay put if unsure and can name rising water, fire and deadly exposure |
| Signals | No whistle or lighter in your jacket | Both in the jacket | Both, plus the UK 6-blast signal and the SOS light pattern |
Go further
- Plan Every Outing So You Never Need Rescue: Trip Plans, the 10 Essentials and Turnaround Times covers what to pack and how to check weather and daylight in detail.
- Signal for Rescue: Whistles, Mirrors, Fires and Satellite SOS covers mirrors, ground-to-air signals and satellite messengers.
- Build an Emergency Shelter in 30 Minutes covers site choice and building a shelter.
- Find and Purify Water Anywhere covers finding and treating water.
- Keep Going When It Is Hard: The Survival Mindset with Children and Groups covers keeping a group going over hours and days.
- Survive Storms Outdoors: Lightning, Flash Floods, Tornadoes and Sandstorms covers what to do when weather is the threat.
