Coach, good luck it should be a worthwhile addition to your pond.
I like using the flexible pipe cause you can make different shapes, the next one I make will use 1 1/2 or 2 inch flex pipe, I'll make a frame with 2x4's and put nails in it in the shape I want the pipe bent to form the island, then I'll make 3 foam filled pipe island shapes and stack them on top of each other and zip tie them together. I'll probably use pvc reinforcement under the bottom fencing like the one I just built, but no foam noodles.
Please post info and pictures when you build your island.
