No you do not.
You can buy a bag that may contain gemstones, then pan to see what yo get... I did not try it but it could be fun for the little ones.
They have kits you can purchase with various semi precious stones. You use the water and pans to separate the gravel and stones.
We didn't pan for gold. Sorry can't offer any advice.
There is a place to pan for gems, but not gold. It's kind of a child/parent activity station.
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