Raise illumination and switch to X-Ray.

Panel #1
You quickly turn off all that LIGHT and switch to X-RAY VISION. The only problem is that there aren't any x-rays you can actually see.

You raise your VISOR's ILLUMINATION just a little bit this time.
Panel #2
Since you're currently using X-RAY VISION, your SUIT compensates by releasing lots of X-RAYS.

...You hope there isn't anything living nearby, or else they can say good bye to their chromosomes.
Panel #3
You still can't see very far, or through any objects for that matter. You bump the ILLUMINATION up to the next level and take a look at what's under your feet.
Panel #4
You seem to be standing upon the roof of a submerged BUILDING.