Complex sentence: Creeks that will flow into the lake will sometimes alternate between being estuaries and mud flats, for this reason Hunter Lake will not be an ideal reservoir for some forms of shoreline recreation, such as swimming.
Split into simpler sentences: Creeks that will flow into the lake will sometimes alternate between being estuaries and mud flats. For this reason, Hunter Lake will not be an ideal reservoir for some forms of shoreline recreation, such as swimming.