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Pleasure Bay is an artificial bay near Castle Island in
South Boston. A
crescent-shaped human-made walkway extends out into the harbor from Castle Island to the end of
Columbia Road. This walkway is essentially a large dam with small bridges
that allow the ocean to fill and empty into the artificial bay as the tides
change. A
significant current is created by the compression of water into these small
outlets. The above view is looking out into Boston Harbor as the tide recedes. |