10K views · 298 reactions | Alcatraz—the notorious island prison located in San Francisco harbor—opened #onthisday in 1934. Visit the site, now a tourist destination, on Aerial Cities: https://bitly.com/33ao1wu | Smithsonian Channel Aviation Nation | Facebook

46K views · 710 reactions | #escapealcatraztri splash zone! | Escape from Alcatraz Triathlon | Facebook

6K views · 105 reactions | The thrill, the challenge, the dream come true. The 2022 Escape From Alcatraz Triathlon Random Drawing is now open. Sign up today and make 2022 your year of Escape! | Escape from Alcatraz Triathlon | Facebook

It’s the most notorious prison in history – and 13 escape attempts were made from Alcatraz. Historian Ashley Rubin discusses the most famous, on the HistoryExtra podcast. Images: Getty, FBI Archives | HistoryExtra | Facebook

Prisoner Who Escaped From Alcatraz Sends Letter To The FBI 50 Years Later! Was Alcatraz, San Francisco’s notoriously inescapable prison, invulnerable to such escape attempts? Well, one letter – claiming to be from someone who successfully escaped the prison – threatens to shatter this idea. Let’s dive into the San Francisco bay and try to get to the bottom of it. | Be Amazed