I stumbled across Deep Blue Sea 3. A truly forgettable movie, only saved by Tania Raymonde in a bikini. She was so good in it that the sharks could have been wearing bikinis as well and I wouldn't have noticed.
I don't deny Tania Raymonde in the bikini is the best part of Deep Blue Sea 3, but I have the movie and it's not that bad. If you pay attention to what people are saying everything ties right back to Aquatica in the first Deep Blue Sea.
Only part I hated, was when the guy switched sides to the good guys, leaped off of the very tall ship, and one of the bull sharks made an impossibly high leap and ate him!