Water park

la

We have a 12yo, 4yo and 7 week old baby. We’d like to take the older kids to a water park, so we’re planning a trip. Wondering if anyone has gone with a newborn? Any tips?

She wouldn’t go in the water, but I’d like us all to go as a family. Me and dad can take turns going on rides with the older two. Or should me and baby find something else to do?