might work but sounds complicated!
There is a cheap fish called the AquaBot by HEXBUG that inspired this build. It has some sort of sensor with two probes, one on each side of the fish that does exactly what i want to do with my project.
you can touch both sensors with your finger and the fish swims or toss the fish into water and it comes alive and swims but once its out of the water it shuts off without switching a switch.
This is the type of water detection im looking to build into my project but was hoping for a little guidance on the best type of sensor that would detect water but also some guidance on putting the arduino in sleep mode but still monitor the water detection so it can kick on when it is in the water.
Thanks again for any help you can offer!