/diy/ - Do It Yourself

I was thinking about building a small little home near a local lake to visit every couple months to get away for a weekend or to write and enjoy the nature. I wasn't planning on purchasing any property just hoping no one will notice. I've been google earthing my location to try and find a good area to do this. There are A LOT of lakes where I live so I've got many choices. I'm going to be trying to find out as much as I can about each area before deciding on where it is going to be.
Now I know this is illegal and hard work and yatta yatta and that is all well and good. The big question I have is this: most lakes that I deem secluded enough don't have any roads that I can see on the map to get to them. What would be the best way to get a truck in close enough to bring building materials? Anyone ever actually done anything similar to this that has tips?