Best Aquatic Horror Movies

George Kennedy, Richard Crenna and Nick Mancuso star in this nonsensical but atmospheric story about a ghostly freighter with a mind of its own that rams and sinks a cruise ship, forcing the surviving passengers to board the evil vessel.

Eels are sorely underutilized within the horror realm, but this SyFy fare about a giant eel terrorizing the Everglades does a great job in exploiting how ugly and menacing these things can be.

Legendary stop-motion animation wiz Ray Harryhausen provided the special effects for this film about a giant squid wreaking havoc on the citizens of San Francisco.

Impressively realistic animal effects highlight this Australian flick that's slower and more dramatic than most killer animal fare.

This oft-overlooked black-and-white zombie movie about the crew of a sunken ship cursed to guard their cargo of diamonds builds to an exciting climax, invigorated by the striking image of zombies walking underwater.

What's cooler than underwater zombies? Underwater Nazi zombies. These goggle-wearing undead soldiers are remnants of Nazi genetic experiments to create the perfect killing machines, who, decades after being sunk in the bottom of a ship, have developed quite a liking for water. It goes along well with their liking for killing people, although Romero zombie fans may find its lack of gore disheartening.

It doesn't take full advantage of its concept -- a salvage team locating a long-lost cruise liner with a murderous past and ghostly inhabitants -- but this slick production starts and ends with a bang.

The original and the remake of this tale of killer fish let loose in a lake both play like enjoyable lighthearted semi-parodies of the aquatic horror sub-genre.

From the director of Wolf Creek comes this overly serious but entertaining tourists-versus-giant crocodile pic featuring a classic climactic man-versus-beast battle.

AKA The Devil's Tattoo, this British film about environmentalists taking over an abandoned oil rig, unaware that the previous crew had fallen victim to a supernatural entity, is much smarter and more well-made than its cheap DVD cover art implies.