There is one six flag water park in Concord
No water park at the Vallejo park. But there are two water rides.
From what i know there is Six Flags Hurricane Harbor waterpark in Santa Clarita. Discovery Kingdom is offering combo tickets for two parks, Discovery Kingdom and another waterpark, which is cheaper. Just not sure which six flags waterpark. Sorry.
There are places to get wet and cool off, but no water slides.
No (however, there is one water ride)
Yes
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