Hey buds, here are a few tips.
Look for a spot that is seculed, yet doesn't have dense canopy overhead. Some canopy is good, as it stays stealth, but will let sunlight in. If you can, find a spot with good proximity to a water source. The amount of work required to water plants in the peak of summer can be substantial! If you're digging into the ground, then you'll need to consider tree roots and rocks, so that will factor into where you position them. If you leave them in pots, then that's a non-issue.
Essentially, yes. Walk out into the middle of the bush until you find a spot that meets your criteria. Regarding the question of proximity to houses, it depends on circumstance. What I mean by that is that different patches of bush and different areas will result in a different answer. If you live in the city and there are bushwalking tracks all over the trails and fire trails out the back of the houses, you will want to find a spot well away from those. If you live in whoop whoop and there are no bushwalking tracks around, a few hundred metres might be fine. Use your senses for that one. And split up your plants into a few locations, so that if one gets found you don't lose everything.
To not get lost requires that you familiarise yourself with the area. Once you head out a few times, you'll figure it out. Keep in mind that you shouldn't use the same route every time you go out there as that will lead to an obvious path straight to your precious plants. So mix it up.
Yeah, carry the soil out there, don't plant in poor soil. It's a lot of work setting up a spot and carrying everything you need out there, but it's worth it. As for water, as I mentioned above, try to get a spot with good proximity to water, as in a creek with stable baseflow. If you don't then you'll have to carry a tonne of water out there over time. It'll get you fit! But it'll kill you too.
Hope that helps.
As every flower fades and as all youth
Departs, so life at every stage,
So every virtue, so our grasp of truth,
Blooms in its day and may not last forever.
Since life may summon us at every age
Be ready, heart, for parting, new endeavor,
Be ready bravely and without remorse
To find new light that old ties cannot give.
In all beginnings dwells a magic force
For guarding us and helping us to live.
Serenely let us move to distant places
And let no sentiments of home detain us.