Lardeelion,
Sorry for my excursion into that territory and deviation from your initial starting point.
Now, back to actual decks... and structures. I never took any pictures of the deck that I built on my river bank, but I wasn't kidding when I said that my deck fell in the river. It was only eight feet wide (going out into the river) and 12 to 14 feet in length parallel to the water flow and along the bank line.
There were two cottonwood logs about 18" in diameter and 40 feet long which lodged and anchored themselves against my river bank. These logs made it difficult to fish from the bank, so I built a deck across them and attached it to the bank. now I could walk down to the river and out on the deck and fish or just sit and dangle my feet in the water. Very comfortable and a great view of the river. But this river is rather precarious and violent at times. A few summer gully washing floods and a couple of ice jam floods in the spring took my deck and busted it up into splinters and took it on down to the Gulf of Mexico.
Oh well, that's life!
Now, I have an idea that I believe many people would enjoy for their pond if the pond and landscape could accomodate it.
It would require some serious construction planning and engineering, but is totally possible to create.
Construct a wooden span bridge over the pond from one side to the other and in the middle of the bridge, have a deck (or maybe a gazebo-like structure) with a nice table in the center and precipices (viewing areas) around the perimeter to lean over and view the fish, plants, water and rocks / water features at the deepest area of the pond. You would have your viewing area in the center of the pond looking outwards in all directions.
Depending upon the size of the pond, you could have maybe up to six or eight family members or guests out on this deck for dinner and really be at one with your pond. Your pond dimensions would have to be larger than most, of course, but wouldn't this really be a relaxing and beautiful spot?
Gordy