please tell
u need to use a base stage that has swimable water like jungle japes or delphino plaza. as for adding water to a stage idk x.x lol try asking lensho or mewtwo2000
Well, since water would be a model with edits so that its interactable with the player, I would think all you would need to do, is treat it like a port and port it into a stage (including fixing it up and all)
If you got the water from Jungle Japes, I would think that its fast moving water would transfer as well, If you wanted clear water, try going with water from Pirate or Defilio (pardon if I spelt that wrong)