Want to know a secret? We didn't actually have to be in the deep water ourselves, just stand on the edge of the pool and give directions.
Luckily I remembered that I can unlock the mousewheel, so that it keeps spinning for like over a minute with one push. But for me, the ocean didn't seem that scary and there wasn't enough of blood, not even explosions or bikes to compensate the lack of blood. So eventually I got tired and don't know how it ends.
Thanks! I'm so glad I didn't see it through as that's the kind of plot structure I would sort of advice against. I prefer big stories or at least good SFX and lots of blood. Or bikes and explosions in the absence of blood. Inclusion of Vikings has never done bad for any game or movie either.