Not just home to the capital city
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ACT Environment, Planning and Sustainable Development Directorate
https://www.environment.act.gov.au/ACT-parks-conservation
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Urambi Hills Walk in the Urambi Hills Nature Reserve is situated approx 20mins south from Canberra CBD and offers great 360 Views
Great walk to a beautiful hut, great for overnight (bring a a tent, not recommended to use huts except in emergency). Can also walk in/out via Caloola Farm, 6kms. Very cold in winter!
Walk along Naas River. Info posts along the way. All on fire trail. Also goes past Demandering Hut. Both huts are in good condition, recommended to take a tent though & avoid staying in the huts except in case of emergency. Most Namadgi huts have basic supplies - matches, info, wood etc.
A 30min drive from Canberra, Mount Tennent is a great half-day walk that incorporates part of the Australian Alps Walking Track and offers expansive views from the summit. Parts of its are fairly steep, as you are climbing about 800m to the summit (elevation 1,375m asl).
Known as one of the best day walks in ACT, Mt Gingera is the second highest mountain in the entire state after the nearby Mt Bimberi.
A full day bush bash and scramble to the picturesque summit of Mt Gudgenby - the 9th highest mountain in the ACT.
This is an easy walk that you can choose to do the full nine kilometres return walk or take the shorter six kilometre return walk. It's the same walk, you just take a short cut to cut out three kilometres of the overall walk.
The walk does have some moderate inclines, but these aren't that challenging if you pace yourself, if you find these parts a little difficult.
The walk takes you past three huts built and used by early settlers. The information brochure that is available at the track head gives good insight and detail of the walk.
6 km return through open plains with Aboriginal rock paintings at the end