Thanks to everyone who gave such excellent advice.
I'll do some further research into underwater cameras and see if there is one that is rugged enough, yet affordable enough to meet my needs. The
Pentax W30 will hopefully come back under warranty and I will use it as a back up in case my new camera fails, whatever that new camera turns out to be.
I need a camera that will be able to survive our round the world trip so shockproof is also an important feature.
Cheers All,
BDA

I need a camera that will be able to survive our round the world trip so shockproof is also an important feature.
Cheers All,
BDA