Where does the Yantic officially become the Thames? The Thames and its coves are open. Also, one might assume that the Yantic below Indian Leap is open year round as it is more tidal and closer to the Thames than the area below Greenville dam, which is open. I believe that the inclusion in the regs. of the Greenville area and not the Indian Leap area is (a) an oversight or (b) intentional because this is considered part of the Thames. If neither is the case, then there must be some clear indication of where the Yantic ends so fishermen know where they can legally go out of season.