Pentax WG-3 GPS Operating Manual page 114

Although the camera is designed to be waterproof and dustproof, avoid using
the camera under the following conditions. It may momentarily be subjected
to water pressure beyond that covered in the guarantee and water may enter
the interior of the camera.
• Jumping into the water while holding the camera
• Swimming while holding the camera in your hand
• Using the camera in environments where water is applied forcefully, such
as strong river currents and waterfalls
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