It would depend on what sort of water effects you\'re aiming for...
Are you wanting \"moving\" water like in a river or waterfall, or still water?
And then, are you wanting it to be deep or shallow...?
I would agree that woodlands scenics water effects are good, but if you want any sort of depth I\'d go for some sort of clear resin.
Other products tend to shrink, so that what seemed quite deep-looking when you applied the stuff, will only fraction of the depth once dried.
(Of course this will take several applications and take a long time to do)