I couldn't find any no autonomous mods that stopped sims from playing the ocean autonomously, so I created one. ^w^ Sims will no longer play in the ocean unless you direct them to. This also includes playing with toddlers in the ocean. You may see the command come up in the queue, but the game removes it immediately.
Note: This was built and tested with game version 1.67 and requires Island Paradise. This mod should work with previous game versions after Island Paradise.
Other mods will conflict if they also edit the following ITUN files: