My most memorable bushwalk was a three and a half day 45 km hike along the Main Range National Park about 100 km south west of Brisbane. The end of the first day ascending I think the third peak to where we would spend the first night was gruelling, with tired legs and too much stuff in the pack. The feeling of isolation was great. We saw a another couple of people on the first day, and a group on the last day, but had two whole days where the only sign of civilisation was a single "Do not camp here" sign in one environmentally sensitive part. It was a one way trek, and we had arranged for my mother to pick us up at the end to ferry us back to the car; stopping halfway back looking at the mountain range we had walked up and down made the tired legs and shoulders well worth it.

That was 12 years ago. Three of us went on the walk. One of the friends recently celebrated an "even number" birthday and asked us for memories of our friendship with him. We both independently shared that hiking story.