Canyoning is a sport that consists of the progressive exploration of a river, transposing vertical obstacles through various techniques and equipment. This sport was born in the late 1970s in Europe, more precisely in France and Spain. The sport in Portugal is growing rapidly, since this country has several rivers that provide this sport practice. The thrill and adrenaline is the biggest attraction for practitioners who fall in love with the exploration of canyons. Contrary to what some people think, Canyoning is a safe sport that uses high-tech equipment and performance. The fact of being in permanent contact with the nature can transmit to the practitioner of the sport an inexplicable sensation of freedom and harmony. Requirements for canyoning activity: Mastering the rappel technique.