Positives:


-Sol Kyung-gu is impressive as always. Ha Ji-won is highly impressive as well. Rest of the cast also does a near-perfect job.
-The action/disaster scenes of the film deserve a special mention as they are very neatly executed.
-Visual effects are pretty impressive and enhance the film's entertainment to a great extent.
-The emotional scenes are impactful and have been executed with excellence.
-The story is quite good and the message of the film is appealing.


Negatives:

-The only negative is that it takes too long to arrive at the main point. Although the first half does showcase some good character development and makes us understand them even more, the comedic bits are at times overdone and could've been easily done away with. In short, it's only the editing which is a major flaw.

TIDAL WAVE is adecent disaster film which does take its own sweet time to build up, but it makes sure to reward the viewer for his/her patience, in the second half with excellent visual effects and action scenes.