There are plenty of National Parks and nature reserves around Australian Capital Territory. One place you should definitely visit is the spectacular Ginnindera Falls, just north west of Canberra. There are some beautiful gorges as well as some walking trails. You can also go walking in the Tidbinbilla Nature Reserve, south west of Canberra. You will get the opportunity to see a whole host of wildlife and animals in the nature reserve from kangaroos and koalas to emus. Further south west is the Corin Forest where you can enjoy the excitement of a bobsled ride.
The Canberra Nature Park makes a great place for walking offering several walking trails, including trails around Mt. Ainslie and Mt. Majura. If you feel like a challenging bush walk then head to the mountainous landscape of the Namadgi National Park. The National Park is home to 8 mountain peaks at a height of over 1700m. You can also camp in the area at Honeysuckle Creek, Mt. Clear and Orroral River.
If you are interested in outer space, then you should head to the Canberra Space Centre and Mt. Stromlo Observatory. Both are situated south west of Canberra and are open daily.