The worst part was attempting to get them level. I tried digging ruts at first but found it better to just flatten the soil bed before placing them down.
The best part about this project is the elevation so the walkway clears mud and rainwater. Very cool!
I don't mind if the wood rots down below... I can just replace them or come up with something new if that happens. DIYers need an excuse to create more stuff anyway. :)