Nothing beats chilling out by the water while you're on vacation. Take a picnic to Lac de Servieres and then hang around for a lovely sunset.
You'll soon learn why this Orcival body of water is visited by many travelers. If you're looking for more to do and see here, Thermes du Mont-Dore, Lac de Guery, and Lac Chambon are in the area as well. They won't take you long to get to from Lac de Servieres.