A long time ago started using FSX to do boating rather than flying. I found at that point that FSX did not have proper water contour and I found UTX for Canada and US. I found it to be very close to real life in regards to contour for lakes rivers and channels. Its main problem however was water levels. I am talking about "water mountains" up to 150' and sometimes dips and hills than can dip down 50 to 100' and then right back up in a length of 1/4 mile, in a river that is suppose to be level.
I am thinking that doing some "scenery design", I can fix these spots, but the only thing I have manage to do, and this was quite a few years ago, was to use G max to model my own boat.
I have tried to look into the FS Devoper's section but end up being overwhelmed by the terminology being used.
Bottom line: can I fix these problem areas and what programs would I need to start with.