Impark Public Parking

The car was secure but it's not it's great place to be walking around after dark. It's almost creepy, it doesn't help with the poverty and homeless people loitering around.

The local US Secret Service use this lot. Very secure. Car broke down whilst parked on the roof for three days and the building's overnight local security team were very professional and understanding.

Great parking spot if you’re going to Alcatraz. Alcatraz parking for cheap!

Parking garage closes at 7pm. They provided a QR code in order to unlock the doors to enter after 7pm if you want to get your vehicle. The QR code didn’t work (for any of the doors to the garage) and there was a crowd of people waiting outside for security to come unlock it. We were finally let in (being charged for the entire time we waited) but when we went to drive out the gates wouldn’t open. We called the number and waited on hold to get someone to open the gate. Never park with this company

Plenty of spots available at 8 AM. $19 early bird rate. Lots of space and open lines of sight around cars. Quiet neighborhood. Very close to Alcatraz ferry.