Cannon one is a museum quality replica cement cannon placed on the San Pedro in March 1988 to enhance the site as an underwater museum. This cannon not only helps to enhance the site as an underwater museum, but also serves as a hard surface for which sea creatures, such as corals, can attach themselves. Recent rotation of the cannon, due to possible storm action, caused damage to living corals. These corals were documented during an IU survey conducted in 1995. The bleached spots are the corals that have been damaged.
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URL: http://www.indiana.edu/~scuba/san_pedro/video/cannon1.html
Last updated: 3 October 2001
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