Harvesting Geoduck clams - GIF

Harvesting Geoduck clams.

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Previously:

https://www.homemadetools.net/forum/...295#post126877
https://www.homemadetools.net/forum/...237#post109903
https://www.homemadetools.net/forum/...3352#post98829
https://www.homemadetools.net/forum/...3374#post98883
https://www.homemadetools.net/forum/...4640#post80304

How do they know where to dig?

This is likely from a geoduck nursery, where they have been planted at regular intervals along the beach. There's also a depression in the sand, created by water expelled from the siphon, which can be a good indication of where to dig.