A glass section of the ladder allows you to watch the salmon as they struggle dramatically against the current.
These locks provide passage for boats transiting between Puget Sound and the fresh water estuary of Seattle's Lake Washington. In the autumn the lock's adjacent ladders fill with migrating salmon that are swimming in from the ocean to their headwaters to spawn.
Seattle, Washington, US
Discovered by Christopher Boffoli
on 10 November 2007.
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