- This piece of artwork in the Marina also plays music. The sea-powered organ is a set of pipes that run along the waterfront and extend into the waters of the bay. The organ was built by scientists from the San Francisco Exploratorium. Place your ear against one of the pipes and listen to the music created by the sound of the waves. It's a unique way to enjoy nature and this is, perhaps, one of the few places in the world that you can.
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