2. Observe the tree you want to climb from a distance. Find a big tree with lush foliage that can bear your weight, and its diameter should be above 15cm. Before climbing, take a good look at the tree you want to climb from a distance. The following signs prove dangerous and unsuitable for climbing: the trunk is strange in shape or direction. Climbing an inclined tree is risky, but sometimes it is safe. There are deep cracks. There are large depressions or exposed bark. Branches at the top of trees such as pine and cypress are signs of decline. Other kinds of trees may have no problem with this phenomenon, but try not to climb on the fork.
3. Close observation of trunks and roots within one meter of the ground. The following signs show that this tree is damaged or on the verge of decline and is not suitable for climbing.
4. Think about the weather. Even if the tree you want to climb is strong, bad weather can cause danger. The following conditions may affect your climbing: it is forbidden to climb trees in thunderstorm and windy weather. Wet weather may make the trunk slippery and the climbing risk is high. Trees will become fragile in low temperature environment. Be careful when climbing, and check the stability of branches before choosing.
For the sake of safety, the last preparation before climbing a tree is to look for potential safety hazards. Always be careful of the following questions. Some situations are hard to find just by looking at the ground, so be careful when climbing mountains. If there are wires within three meters around the branches, you are not allowed to climb. Trees with damaged or broken branches under big branches are not suitable for climbing. People who love to climb trees call this kind of tree a "death trap".