Skating on lakes where the ice is gradually melting is extremely risky, and it is strongly recommended not to try. The ice structure during the ice melting period is extremely unstable. Even if the surface looks intact, it may suddenly break due to temperature changes, water flow, or internal melting, causing people to fall into the water, hypothermia, and even drown. The following are key safety recommendations： --- ###**Absolutely prohibited situations** 1. **Spring or temperature fluctuation period**: When the daytime temperature is higher than 0°C (especially for multiple consecutive days), the ice will accelerate thinning and its intensity is unpredictable. 2. **There is stagnant water or cracks on the ice surface**: Surface puddles, obvious cracks or air bubbles indicate that the ice is melting. 3. **Close to flowing waters**: The ice layer in areas such as river entrances and springs in the heart of lakes is more fragile. --- ###**If you must evaluate the safety of the ice surface** (Only for professionals in case of emergency) 1. **Thickness detection**： -The ice layer needs to be ** at least 15 cm or more** (pure blue ice) to withstand melting, but the uniform thickness cannot be guaranteed during the ice melting period. -Use an ice drill to measure every few meters to avoid relying on a single location data. 2. **Observe signs**： -**Danger signal**: Off-white ice, honeycomb structure, sound of water flow. -**Relative safety signal**: transparent blue ice (but thickness verification is still required). --- ###**Emergency self-rescue preparation** Even if all the rules are followed, skating during the ice melting period may still be dangerous. If necessary： 1. **Wear protective equipment**： -Buoyancy vest (such as a special buoyancy suit for ice rescue). -Crampons, life-saving ropes, waterproof and warm clothing. 2. **Act together**： -More than 3 people travel together, at least 10 meters apart from each other, to avoid concentrated weight-bearing. 3. **Emergency tools**： -Bring an ice pick (for climbing out of the water), a whistle, and a mobile phone (sealed in a waterproof bag). --- ###**Safer alternative** 1. **Choose an artificially cooled ice rink**: Completely avoid the risk of natural ice. 2. **Delayed activities**: Wait for the winter to freeze completely and the temperature is stable before skating. 3. **Consult local authorities**: Contact the park management department or ice rescue agencies for real-time ice conditions. --- **Life is priceless. The natural ice surface during the ice melting period cannot provide reliable safety protection. Please be sure to choose an absolutely safe environment for ice activities.