I like the PVC pipe "tree" I think I need to build some of these.
How is your dock being secured to the pond bottom and do you have any photos of the dock? I'm looking for ideas.

Here is where you can see the rest of our pond:
http://catskillpond.com/photo.html

I designed the web site for my buddy Scott Trava from Catskill Pond and used our project for the photos.