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How cold is the water around Alcatraz island?

Water temperatures for Alcatraz swims are usually in the mid-50's to mid-60's. For comparison, pools used for competitive swimming are between 77 and 82 degrees (Fahrenheit).



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Odyssey Alcatraz swims are approximately 2 miles long and can take anywhere between 20 minutes to over an hour based on your level of experience and the conditions. Swimmers are encouraged to wear a wetsuit due to the low temperatures, which can range anywhere from the high 40's to 65 degrees.

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Still, swimming from Alcatraz is no joke. Some of the key challenges include: Rough and choppy water. Cold water temperatures which can be 10 degrees or lower than in other parts of the East Bay.

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Alcatraz weather is dominated by the fog that likes to creep into San Francisco Bay. When it does, Alcatraz is directly in its path. The temperatures can drop rapidly even as the wind comes up, creating a one-two punch that can make your teeth chatter.

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Before they open the prison in the morning, they have him come out and deliver an opening act for the crowd. He's like a standup comedian. What does Alcatraz smell like? A cross between sea air and decay, old paint.

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Every year, there are a total of 18 overnight stays available on Alcatraz, and a staggering number of 200 to 400 groups compete for the opportunity to secure one of these spots.

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Every year, there are a total of 18 overnight stays available on Alcatraz, and a staggering number of 200 to 400 groups compete for the opportunity to secure one of these spots. Of course something like this would be in high demand, which is why only non-profit groups with a 501(c)(3) status are eligible to apply.

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It's often chillier on Alcatraz than on the mainland -- we recommend layers! Fog is common in the summer, rain in the winter. Annual temperatures fluctuate between 70-45 degrees F.

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On average, it's recommended that you set aside a minimum of 2.5 hours for your visit to Alcatraz Island. That time includes taking the round-trip ferry, which is about 15 minutes each way, touring the prison, and walking around the island to explore the gardens and displays.

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At Alcatraz, work included factory work, laundry, general prison maintenance, and food preparation. Inmates received nominal wages. As cash can be a dangerous commodity in the prison, wages were credited to individual accounts in the prison trust fund.

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Loud talking, whistling, shouting, singing, and other unnecessary noises are not permitted.

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No food service is available on Alcatraz, however there is a picnic area located at the dock. Food, drinks (including candy and gum) are only allowed on the dock. (An exception is bottled water, which is available in the bookstore on the dock on Alcatraz.) Smoking is only permitted in designated sections of the dock.

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As Alcatraz had no water supply of its own, it had to import it from the mainland, brought by tug and barge. During the island's military years, it was stored in ground tanks and cisterns situated on the roof of the citadel. The water tower was built in 1940–41 by the Federal Bureau of Prisons.

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Punishment at Alcatraz was extreme. At the dungeon, prisoners were chained up standing in total darkness, often with no food and regular beatings. These punishments often lasted for as long as 14 days and by 1942, the dungeon was found to be unnecessarily cruel and closed.

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There a chartered bus transported them to an undisclosed airport where a U.S. Immigration Service airplane took them to their new institutions in Leavenworth, Kan.; McNeill Island, Wash.; Lewisburg, Pa.; or Atlanta, Ga.

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