Soaked passenger side floorboard, where is the A/C drain located?

I'm pretty sure its water. Also, when I make a turn, I hear a water sound sloshing to the other side of the car. Like there is water trapped somewhere behind the dash.

I found the condenser drain tube. I used an air compressor to blow air inside it and even pushed a metal coat hanger inside the drain tube. I was unable to unclog it but there was a small amount of water leaking out. Everything around the drain is wet also. How else can I unclog this tube? My passenger side floorboard on both front and rear are completely soaked and smelling like mildew. I even have been using a shop vac to such up excess water but it's only helping to a degree. Help!