You're saying whenever these occur CJ ends up in the Ocean?
If you have modded the game remove them.
When you have a Clean working installation.
You may install your mods again. One at a Time playing the game to prove it still works before installing the next, and repeat until you hit the one that screws the game. Then don't use it or go to the Modding Forums for help with it.
This San Andreas Forum is for UN-modded game questions, and problems.