If you took most cameras for a swim, you'd effectively have a very expensive, one-time-use camera. Or you'd need to spend some extra bucks on getting a water housing.

But I recently dove into underwater photography with an Olympus Stylus 720 SW, a new 7.1-megapixel ultracompact that is both shock resistant and waterproof to a depth of 10 feet. (It now comes in three different colors, too.) I used my in-laws' pool to institute a suite of new testing procedures that take wter into account. These tests include the cannonball shocktest, the water polo endurance test, and the Nestea Plunge performance test. I'm happy to say the Stylus 720 SW did quite well. Check out my First Looks review of the Olympus Stylus 720 SW at PCMag.com.

Thanks to Terry Sullivan, our camera lead analyst, for this post!