Besides the makeup, tshirt and ccard, what else makes this a Zombie dive course? We all know zombies can’t swim, and they don’t need to breathe, so they should eventually sink to the bottom or float mindlessly on the surface, thrashing about when a living diver comes by.
So are you going to have Zombies on the bottom or surface of the water that living divers must evade and/or humanely dispose of?
Btw, brillant idea! Looks like a lot of fun.