The Hyde Street Pier (2905 Hyde Street) is a ferry pier and landmark of San Francisco. Crates with "Medical Supplies" are loaded by Shepherd Robots and ferried to Alcatraz.
A pipe leads into the Rat's Den. Ratman 1 returned there on Day 1.
On Day 3 the Manhunter exits the pipe escaping the rats, and using the Hatchet hides into one of the crates.