Cool setup Peter! I am doing a pond next. P.S. Never Saddle a Dead Horse. It means to never apply the saddle of the clip to the dead end of the rope. 0:47 These look like they might be upside down. Also, 3/8's requires 6-1/2" of turn back length with 3-1/4" spacing. just in case
Nice setup and yard! what is that ladder you've got that wraps around the tree? Would like to get my hands on one of those, seems easier than building a wooden platform as I was about to