One of my memorable solo tours was what I called my "Aimless Wander Ride". It was in Tasmania, and I left my doorstep and really didn't have a clue where I would end up that night.
I gravitated northwards, and eventually ended up on the Central Highlands.
I camped by the Derwent River, I rode through an amazing swarm/flock of butterflies, traversed some roads, some sealed, some gravel, that I hadn't been on before, and camped at Bothwell to watch a truly magnificent sunset. Then I returned home via Richmond, taking pot luck as to whether there was space at the local caravan park.
I think I was at the peak of my randonneuring at the time, and this tour was just something that was different from Point A to Point B with a time limit.
And Bekologist has a very valid point about exploring your own region. It's one of the reasons why Machka and I suggest very strongly to anyone wanting to tour that they should do a few overnighters as practice from their front doors, if possible logistically. I spent years discovering little spots that many people didn't know existed in my home city.