The biggest danger in a canyon is a sharp rise of the water level. Flood risk is a consequence of many parameters: geographical location, altitude, hydrology, geomorphology, climatic conditions.
Attention! High-altitude mountains can produce water floods. A high-altitude torrent powered by melting snow can significantly increase its flow during a hot, sunny day.
Attention! Heavy rain can produce water floods. A storm in a dry and poor vegetation environment can cause very sudden flooding.
Even if a sudden flood hits your group and everybody is ok do not neglect the risk of falling stones before the ground stabilises.
Canyoning is a group extreme sport. Always have an eye contact on your fellow canyoners, proceed preferably at pairs and never go forward alone, especially if you are not an experienced canyoner. Nevertheless, try to show correct behaviour along the way (do not jump anywhere, do not go forward on your own, stay focused).
During the hot summer days and a long course of approach to the next water pond under the sun, entry into the water is advised to be progressive. Sunburn and hypothermia are the two extremes that can occur – perhaps simultaneously – when descending a canyon. For this reason we try to drink water and electrolytes often, we always carry in our canyoning dry bag food, nuts, raisins, energy bars, chocolates and some hot drink – preferably tea with honey – in a thermos if the season has low temperatures.