Intentional camp, and fun enough for a good laugh. Snakes have gotten tired of planes, trains, and automobiles, so now they set sail under the sea. It's up periscope, finance a film budget of $49, and bon voyage.
"Captain, we have snakes on board." Oh really? Perhaps that means the rubber toys that vaguely resemble snakes. Also, some hilariously cheap CGI serpents that move more like video game cartoon characters than a snake. Shots of them slithering around aimlessly on the floor with no actors anywhere around pop up once in a while; this may be inserted stock footage of real ones in a glass case. The actors trying to look scared of these blue screen and/or rubber beasties is priceless. One scene has a guy gingerly lifting a the rubber toys off of an imperiled person, then hurls it wildly lol.
It's all a government conspiracy; astonishing. Some evil guy sends a scientist on board to covertly transport genetically engineered snakes for military use (neglecting to inform the crew of the hissing cargo, of course). Maybe it's the DNA mutation that makes them look so fake, and lazily hang out doing nothing like they've been drugged. Anyway, things progress exactly as expected, in the ludicrous fashion that's expected.
Turn off the brain before watching.