Panasonic Lumix. They are brilliant. My brother and I both have them and have tested them a variety of times, mine has been jetskiing, snorkelling (and used underwater with no additional case), fishing, SCUBA diving (in 40m case), motorbike riding (dirt tracks), 4WDing, to the shooting range, sailing, wake boarding, waterskiing, snowboarding, snow skiing, etc. and hasn't missed a beat in 2 years.

Had some of the Olympus Tough models previously and would never touch them again.