view of the gour de tazenat, volcanic lake of auvergne

altitude auvergnat auvergne blue calm central charbonniauml charbonnièreslesvieilles discovery dome ecology environment europe exterior forest france geology gour greenery hike lake landscape leisure maar massif natural nature panorama park pond promenade puy relaxation reslesvieilles rest sky summer tazenat tourism tourist turquoise typical view volcanic volcano volcanoes walk water wilderness