Alamitos Bay facts for kids
Quick facts for kids Alamitos Bay |
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![]() Alamitos Bay, 2015
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Location | Long Beach, California |
Coordinates | 33°44′59″N 118°07′05″W / 33.74972°N 118.11806°W |
Part of | Pacific Ocean |
Primary inflows | Los Cerritos Channel |
Ocean/sea sources | Pacific Ocean |

Alamitos Bay is a pretty inlet on the Pacific Ocean coast. It is in southern California, United States. You can find it between the cities of Long Beach and Seal Beach. The San Gabriel River flows into the bay here.
The bay's name comes from the Spanish word for 'little poplar trees'.
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Discovering Alamitos Bay's Geography
Alamitos Bay is a protected area. It is safe thanks to a natural sand bar called the Peninsula. The Long Beach Breakwater also helps protect it.
Two jetties separate the bay from the San Gabriel River. They also separate it from Seal Beach. Over time, people have changed the bay's natural shape. They did this by digging up sand (dredging) and adding land (landfill) for building.
A big storm in 1939 caused a lot of damage to the bay.
Fun Places and Activities at Alamitos Bay
Alamitos Bay is home to Marine Stadium. This special stadium was built for Olympic rowing events. It is a great place for water sports.
How Clean is the Water in Alamitos Bay?
People have worked hard to clean up the bay's water. They removed dirty mud and improved how water moves around. An organization called Heal the Bay checks the water quality.
In 2020, they gave good grades for the water. The 2nd Street Bridge area got a "B" in summer. Mother's Beach got an "A" in summer. In winter, the grades were a "C" and a "B." But after it rains, the water quality drops to an "F." This is because rain washes pollution into the bay.
The bay's water might get less clean if pumps from a nearby power station stop working. These pumps help keep the water moving. The city is looking for new ways to keep the water circulating. This will help keep the bay healthy.
Islands Inside Alamitos Bay
Naples is a unique area located entirely within Alamitos Bay. It is made up of three small islands.