I have had enough of cutting trees and clearing undergrowth for a while so have made start on the decking area at the top of the slope down to the stream.
Although the structure was pretty stable I have added cross braces in both directions to make sure there is no movement. The bases at the bottom of the posts are made of heavy duty plastic and are in two pieces with a screwed insert allowing adjustment of height.
I have now decided to modify the decking, originally I had it in mind to encircle the group of trees directly in front of the end but I now realise this will probably make it all to large. In addition I would have to attach the decking to the trees. I noticed in heavy winds there is some movement in the trees which would have put a strain on the decking structure.
I am going to extend the end with an octagonal section and stop it just short of the trees. After coming up with this idea I had a look online to see if there was anything similar and came up with a couple of photos nearly exactly what I have in mind.