Kids dropped the camera in the bath a week ago - not working now (not switching on, even with changes of batteries). can anything be done?

Sir,
Whenever you drop electronic equipment in water, FIRST IMMEDIATELY REMOVE THE BATTERIES.

Remove the cover, and set the item in a dry, warm, dust free environment for awhile.

Salt water is particularly bad--your camera may not recover. But don't bake it in the oven. Thermal expansion of sensitive camera components is a surefire recipe for failure.

Circuit boards are often washed with distilled water after manufacturing. So water is not the terrible bugaboo you might think, so long as it is clean and contact with water is limited. Otherwise oxidation and rust are inevitable.

You might also place a bag of dessicant near the camera. If you live in a humid environment, it might not be a bad idea to keep a bag of dessicant in your camera case anyway. These little bags are often shipped with new computers.
Thanks Good Luck

Place the entire camera, battery removed, in to a large ziplock bag filled with uncooked rice, not minute rice, and place the batteries in there also. Leave for a couple days. And when removed shake and tap lightly the cam to remove any renegade grains that may have found their way into a headphone jack...etc. Fire it up and Good Luck, Dana