These are pretty good cameras, check them out.
Panasonic has DMC-FT2 which features a tougher body that is dustproof, waterproof to 10m, shockproof against a drop of up to 2m, and freezeproof down to -10°C. It uses a 14MP sensor, 2.7 inch LCD, and 28 - 128mm equivalent lens with Power O.I.S optical stabilization. It also features AVCHD Lite HD movie recording and a faster Venus Engine HD II processor, plus SDXC support and the company's curiously-named 'Happy Mode'
Olympus Tough 8010 and 6020 both cameras features tougher bodies that are waterproof up to 10m, shockproof against a drop of up to 2m and freezeproof down to -10°C. With 14MP image-stabilized sensors, 28-140mm lenses and 2.7 inch LCDs with advanced Tap control the the Tough 8010 and 6020 come with 2GB and 1 GB internal memory respectively and feature HD video recording. The 8010 also comes with a built-in manometer for water pressure calculation.
Casio Exilim EX-G1 is The first in the company's new 'Exilim G' series of weatherproof cameras, named in reference to the company's well-known G-Shock series of watches. The G1 is designed to be dustproof, waterproof up to 3 meters for an hour, coldproof down to -10°C (14°F) and shock-resistant for drops of up to 2.13 meters. It incorporates a 38-114mm equivalent lens, 2.5" LCD, 12.1MP sensor and includes features such as Intelligent AF, Best Shot shooting mode and Interval shooting.