I really want a camera case that's waterproof for my digital camera (Canon SD890 IS) so I can take it to waterparks the beach etc. What's a good one?

The GoGo Pac is sturdier than other digital camera bags, The GoGo Pac is made of water-resistant 600D nylon, and features a sturdy, sewn-on belt loop as well as an adjustable, detachable shoulder strap for easy hands-free photo bag carrying.The innovative wide-zippered opening creates convenient camera access, and a front pocket holds extra memory cards or similarly sized accessories, such as lens cloths, without hassle in 6 different floral color schemes as well as black.

The Ikelite 6147.89 Underwater Housing f/ Canon Powershot SD890 IS made of Clear polycarbonate and injection molded has a deepth rating of 200' (60 m) with a slightly negative buoyancy and allows for internal flash usage as well as an external strobe connector.
Ddimensions (WxHxD) 6 x 4.75 x 5.5" (152.4 x 120.65 x 139.70mm)
Weight (without Camera) 3 lbs (1.36kg)