Congrats!
I wish you well on the Other subjects but for now take a well earned break!
As for your Question, Leaf wouldn't go in the water she'll just sit on the sand (i gave her my fear of Seas and Oceans she prefers Pools)
Flora would Go crazy and swim away from the Shore
Luciel.........he will keep trying to enter but the cold water will deter him each time
As for Cloudy he will build sand castles Because it's more fun for him