i am not sure around those areas but i was at the mouth of the big eastern river last new years eve, kinda frozen solid, not sure about the thickness of the ice but im pretty positive the locals there ice fish through that section of the mouth where it freezes, but if youre thinking of heading out there be carefull on the west side parking lot because i barely got my car to stop eventhough i was only doing 10k/hr! LOL!!! tightlines!