Safety ropes are not used in rock climbing, the so-called “free rock climbing” or “unprotected rock climbing”, which is a very challenging and risky activity. Here are some challenges and fun： ### Challenge： 1. **Extremely high risk**: The biggest challenge is that there are no protective measures. Once missed or out of balance, it may cause serious injury or even death. This risk requires rock climbers to possess extremely high technical and psychological qualities. 2. **Psychological stress**: Unprotected rock climbing requires extremely strong psychological tolerance. Rock climbers must always stay calm, overcome fear, and focus on every step of the movement. Any distraction can lead to fatal mistakes. 3. **Technical requirements**: Rock climbers must possess superb skills, including precise judgment of the rock wall, physical control and sense of balance. Every step must be accurate, because there is no room for fault tolerance. 4. **Physical exertion**: Unprotected rock climbing requires extremely high physical strength, because rock climbers must rely on their own strength and endurance to complete the entire climbing process, and cannot rely on ropes or other auxiliary equipment. 5. **Environmental factors**: Weather, the degree of slippery rock walls, wind speed and other environmental factors will increase the difficulty and risk of unprotected rock climbing. ### Fun： 1. **Pure experience**: Unprotected rock climbing provides a pure rock climbing experience. Rock climbers rely entirely on their own abilities and willpower to complete the climb. This experience makes many people feel extremely satisfied and proud. 2. **Connection with nature**: Unprotected rock climbing allows rock climbers to feel the power and beauty of nature more directly, and to be in close contact with natural elements such as rock walls, wind, and sunlight. This experience is unmatched by other rock climbing methods. 3. **Extreme concentration**: In unprotected rock climbing, rock climbers must enter an extreme state of concentration, which makes people feel extremely calm and clear, as if time has stood still. 4. **Sense of accomplishment**: Successfully completing an unprotected rock climbing, especially a very difficult route, will bring a huge sense of accomplishment and self-identity. This sense of accomplishment is the motivation for rock climbers to continue to challenge themselves. 5. **Sense of freedom**: Unprotected rock climbing allows rock climbers to feel unprecedented freedom. Without the shackles of ropes, rock climbers can complete the climb at their own pace and way. This sense of freedom is addictive. ### Summary： Unprotected rock climbing is an extreme sport that brings huge risks and challenges, while also providing unparalleled fun and satisfaction. However, this kind of exercise is not suitable for everyone. Only those rock climbers who have undergone rigorous training and possess extremely high-tech and psychological qualities can try it. For most people, using a safety rope for rock climbing is a safer and wiser choice.