Marina neighbors of mine have a 12 week old Siamese kitten. Sweet little thing, but she decide to see what that blue stuff was on the other side of the deck
They got her out so easily it was worth repeating. They simply grabbed a swim noodle and pointed it down in the water
by her. She climbed up the noodle and back onto the boat.
They did give her a bath in the marina's laundry
sink. She would have poisoned herself with too much salt cleaning
I'm going to make something similar with two noodles, on a board, for my cats. I'll first use it in the cabin
and let them climb on it so I'm sure they'll recognize what it's for should they go over.