Usually an aboriginal group is the indigenous group of a particular area in any country. These days mostly it refers to the indigenious communities throughout, Africa, australia, Mexico, North america/Canada, etc. All of these communities dance. So do most peoples of the world.
For adventire and outdoors you could look at
www.wilderness-challenge.com.au
This is in australia and has plenty of outdoor adventure safaris, though not necessarily any aboriginal dancing. Sometimes you will see a showe put on especially for tourists, but frankly it is not the real thing.
You could also look up - tiwi island tours - which are run from out of Darwin, Australia..