See how axes are sharpened and chainsaws are oiled at the Brienz Lumberjack Festival, held by glistening Lake Brienz. Every September, amateurs and professionals come together to take part in competitions that are all about wood. The sporting activity continues at Lake Brienz in October, when motivated runners embark on the popular Brienzerseelauf down by the lake in Bönigen – as they have since the autumn of 1957. The race around Lake Brienz is one of Switzerland’s oldest long-distance running events. Runners test themselves over the legendary 35 km course around the lake, but there is also a relay, half marathon and a 10 km course as well as popular youth events and the "Pfüderi Race" for children. The main run starts at Bönigen and passes through Iseltwald to Brienz, Oberried, Niederried, Ringgenberg, Goldswil and Interlaken before heading back to Bönigen. The half marathon event starts in Brienzwiler.