Here is the deal: The client has a water retention problem. As you can see on the first picture, the guy has a river that runs at the edge of the yard. The area is appx 1 acre or so that is so wet that it can be cut only a few times a year. The grass looks like a bent grass, but as you walk, your shoes get wet and it is very spongy. He wants to turn it into a golf coarse or at least one or two holes. The question is: What kind of drainage system can be installed and most importantly, is it even possible? If the answer is yes to the later question, throw a ball park figure please. I dont do this type of work, but what kind of contractor do i have to call? An excavation company? A company that cures wet basement? I am totally lost on that one. Any help would be greatly appreciated.