# Safety issues of sliding on undetected thin ice Sliding on undetected thin ice is inherently very dangerous behavior, and there is no 100% safe way. The safest recommendation is: **Avoid activities on unknown or undetected ice**. If you have to cross: ## Security measures -Wear a life jacket or ice rescue equipment -Carry an ice pick with you (for self-rescue) -Use the front of the ice stick to detect the thickness of the ice surface -Keep your distance from your companions to prevent the ice from bearing too much weight at the same time -Carrying ropes and rescue equipment -Inform others of your itinerary ## Ice safety standards A safe ice thickness is usually required: - Single walk: at least 10 cm (4 inches) -Skating or gliding: at least 12-15 cm (5-6 inches) Remember that no ice is "safe ice", especially undetected ice. The best safety measure is to find a professionally tested ice rink for skating activities.