ok if the high tide water mark ends on a river 10 miles down river cause of a dam from a water fowl hunting spot....were i have permission...corret me if i am wrong but there is no HIGHT WATER MARK UP PAST THE DAM ..CAUSE NO TIDE...PEOPLE GOING ON THIS PROPERTY TO HUNT ARE ILLLEGAL.because the land owner owens the land under the water.....and by them walking onto the property staying in the what they are calling high water mark...they are legal...i say no your not.....hope this makes sence......