Never done it before, but after watching a few YouTube videos on how to do this, I figured I can build one to. It is 18'x16' and wraps around waterfalls. I build a bench into it by falls also. I used a Sharp Shooter shovel and set 20 4x4s in quikcrete and went from there. Was very fun to build but my body had noticed the work as I was hurting for a few days after I got it done.