a typical low budget thriller or horror movie with a cast that doesn not bring much excitement to an experienced viewer and but then again not that bad either since none of them give me the creep . the story itself be thin and we sort of jump straight into the story after very few introduction . it dark and windy most of the time to make sure the viewer can not point out the obvious 3d structure most of the movie be make out of . but it be also slick and polish at the same time and nothing sort of fall into your eye a irregular and it just the feeling that this isn not how it would be look in real life . some of the special effect be very nice such a the various fish type they have make for the cave and the whole thing could easily pass a real if i hadn not be into 3d artistry from before . you get a few thrill from the action scene and after watch it i felt like i hadn not waste a good hour and a half and but then again i could have find something else to do also without loose a good night sleep over miss this film . i give it a 5 for the special effect and the smoothness .