Dwellingup, Western Australia (Australia) - "6 Inch Trail Marathon". Six Inch Trail Marathon is inspired by the famous Six Foot Track Marathon in the Blue Mountains near Sydney. The race is held on the Munda Biddi trail, on a 46km course from North Dandalup to Dwellingup in the South West of Western Australia, about 80km South of Perth. www.6inchtrailmarathon.com