Climbing without a safety rope is called free climbing or extreme rock climbing (Free Soloing). This activity is challenging and can bring unique fun, but be aware that it comes with extremely high risks. Here are some challenges and fun: ### Challenges: 1. **Psychological pressure**: Without protective equipment, climbers must face tremendous psychological pressure. Any mistake may lead to serious consequences. 2. **High skill requirements**: Climbers need to have extremely high technical levels and excellent physical fitness. Every step needs to be executed precisely. 3. **Continuous concentration**: You must maintain a high level of concentration and clear thinking throughout the process to cope with different climbing routes and emergencies. 4. **Endurance and physical strength**: Climbing without protection requires sufficient strength and endurance to sustain long-term climbing. ### Fun: 1. **Ultimate sense of freedom**: Without the constraints of ropes, climbers can experience a closer contact with nature and feel the body moving easily and freely. 2. **Sense of accomplishment and self-confidence**: Completing a ropeless climb brings a great sense of accomplishment and self-confidence, because a great psychological and physical challenge has been overcome. 3. **Pure climbing experience**: Without the help of safety equipment, climbers need to rely entirely on their own abilities, which is a purer climbing experience. 4. **Closeness to nature**: When climbing with only one's own strength, subtle changes in the natural environment are easier to perceive, and the power and beauty of nature can be more deeply appreciated. It should be emphasized that free climbing is very dangerous and should only be performed by top climbers after careful preparation and evaluation. Beginners or inexperienced climbers should not attempt such activities. Whenever climbing, ensuring safety should always be the primary consideration.