Warm Showers
The prison made sure that the water used for showering and in all the taps was warm and not cold. The water was warmed before it flowed into the prison for one simple reason. The intention was to prevent inmates from becoming accustomed to the freezing cold water of San Francisco Bay – the water between the island and the mainland.
Quiet Chipping
Anyone’s first suspicion would be that prison guards would definitely have heard the inmates chipping away at the walls. But once again luck was on their side because during the 1960’s, inmates received an hour to listen to music which meant that the prison was far too noisy for anyone to hear anything but a cacophony.