This is a five day walk in the northern Central Plateau Conservation Area of Tasmania. The steep but well constructed Higgs Track climbs up to the plateau, and from there the walk is fairly easy, although some parts involve boulder hopping.
The blue lines on the map above indicate fairly well defined tracks. The orange track is indistinct and follows cairns —there's a more accurate map at this Alltrails page. The wide, pale-purple polygon is an approximate circuit around Forty Lakes Peak, not following any track or cairns, but it's mostly through grassland and easy to navigate. These routes are approximate and you should use official topographic maps for navigation.
Thanks to John and Vonda from the Hobart Walking Club for organising and leading this walk.