Fisheye FIX G11 & G12 Housing for the Canon G11 & G12 Camera
Amazon.com : Canon WP-DC34 Underwater Housing for Canon PowerShot G11/G12 Digital Camera : Electronics
Canon G12 Digital Camera
Amazon.com : Canon G12 10 MP Digital Camera with 5x Optical Image Stabilized Zoom and 2.8 Inch Vari-Angle LCD : Point And Shoot Digital Cameras : Electronics