One waterpark will be open for sure.What they usually do is close one for refurbishing from around November through early January with the other one staying open,in early January that park will then close and the one that was closed for the last two months will reopen.I believe they can rotate or change the parks refurbishing schedule but I think BB is the one that's usually open from November through early January.The parks can close if the weather gets very cold like highs in the 50's with lows in the 20's or 30's but in November it rarely if ever gets that cold.