Lake Chambon was formed by the volcano of the Tartaret that obstructed the bed of the Couze Chambon; it is located at 877 metres of altitude, shallow (4 metres), but quite vast (60 hectares). Its banks are very abrupt, except to the north where a beach has been made for bathing and water sports.
A path allows you to go round the lake in about an hour. A part of the path was repaired in 2006 and sections on piles follow the bank of the lake over the marshy zones.
North of Lake Chambon stands a rock needle, an old vestige of the volcano the "Dent du marais" (Marsh's Tooth), called "Saut de la Pucelle" (Maiden's Leap):
A legend tells that to escape the attentions of the local lord a young shepherdess jumped from the top of this 100 metre high rocky spur – and that she landed miraculously unharmed. She boasted of her exploit in the village and - to convince the unbelieving villagers – decided to do it again, but this time was crushed to her death.
Close to Lake Chambon there is also the ski resort of Chambon des Neiges and the Chateau of Murol.