How to recover my cordless drill that I dropped in 24 feet of water?

I dropped my cordless drill in the lake and I would like to get it out and see if I can fix it. I don't want to hire a diver or anything. Any ideas on a cheap way to get it. I know where it is within a couple foot radius.
Update: The drill housing is plastic, so I am afraid that a magnet won't work.
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