I have started the digging and have come to think about ledges. Take a look at the pics and please tell me if this is the way that ledges should be dug. Do I put ledges all around the pond and at what heights. I want to get to know this before I get farther in the excavation phase. Can you go overboard in putting ledges in? The way I understand it is, ground level then ledge then pond floor. Since I am a newbie to all this your inputs are welcome. Also do I need to leave a ledge for the skimmer at the end of the pond if I go with one. Thanks