Tips to prevent getting lost: The sun, moon and stars can be lighthouses for navigation.

1, the sun rises and sets in the west, which is the most basic way to tell the direction. You can also use the stick shadow method to measure. When the sun is enough to form a shadow, erect a straight stick (1 m or more) on the flat ground and put a stone (or other mark) on the shadow of the wooden stick. The shadow of the stick will move with the sun. After 30-60 minutes, put another stone on the shadow top of the stick again. Then draw a straight line between the two stones, and draw a straight line perpendicular to it in the middle of this straight line. Then step on the first mark with your left foot and the second mark with your right foot. At this time, the front of the standing person is due north, the back is due south, the right hand is east, and the left hand is west. ?

2. If you get lost on a cloudy day, you can know your position through the growth of moss on trees or stones. As far as the trees in the northern hemisphere are concerned, the leafy side is the south. If you cut down a tree, the side with wide rings and wet moss is the north. ?

Use stars: In the northern hemisphere, Polaris is usually the target. The key to using Polaris to identify the direction at night lies in finding Polaris accurately in the vast sea of stars. There are many ways to know Polaris. Here is a simple and effective method:

First, look for the Big Dipper (A) in the shape of the Big Dipper, and extend the interval between the two stars on the handle of the Big Dipper by five times, and you can find the Polaris (D) on this straight line. Generally speaking, the stars on these two handles are called key planets. If you can't see the Big Dipper, go to the opposite constellation (B), which is made up of five stars. They look like the shapes of English letters M or W leaning to one side. Draw a straight line from a star in Hou Xian constellation, and you will find that the distance from Polaris to Polaris is almost the same as that from the Big Dipper. The direction of Polaris is due north.

3. Look at the direction with a watch: I want to know the direction but I don't have a compass in my hand. In this case, as long as there is the sun, you can find the position with your watch. ?

Put the matchstick vertically on the ground, then put the watch horizontally on the ground and overlap the shadow of the matchstick with a short needle. The middle between the surface 12 point direction and the scale indicated by the short needle is south, and the opposite is north.

If there are no matches, you can also use twigs to make the shadows more accurate. Remember to wear a watch if you are engaged in challenging survival activities. At this time, an ordinary watch is more valuable than an electronic watch. Because the hour hand and minute hand on an ordinary watch will become an important survival tool when necessary.