April 23

The correct answer is: 1,084 feet. Since 1916, the Scripps Pier has been used to collect data about ocean conditions, plankton and other important information about the Pacific Ocean. 

Seawater is pumped up from the end of the pier, filtered and stored in holding tanks, providing a supply of fresh seawater to the Scripps Institution of Oceanography's laboratories and aquariums, including the tanks in the Birch Aquarium.

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