The water park will be open all summer long from sunup till sundown. "Not only that but All Los Angeles County parks will have,"Summer night Lights" which means that from 7pm /11 pm there will be different activities going on between those hours for the whole family. So find a LA County Park near you and check out what they haveplanned for you to enjoy witj your family.
Yes
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As far as I know it's open pretty pretty much all week
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