The only time I ever heard of a Cayman dive op having divers and divemasters in the water with no look-out on the boat was Sunset Divers back in 2015 and they were fined for the violation, see link below.
Dive operator fined for safety breach | Cayman Compass
A diver disappeared on that trip but the op claimed that it wasn't related because there was a staff member on board when the diver went missing.
I've never seen that happen with any op we've used in Cayman but we haven't tried them all.
Dive operator fined for safety breach | Cayman Compass
A diver disappeared on that trip but the op claimed that it wasn't related because there was a staff member on board when the diver went missing.
I've never seen that happen with any op we've used in Cayman but we haven't tried them all.