Good question I’m not sure at the moment . I think they may still have tours 

BlokchainB

The NPS completed an environmental analysis for a full preservation and safety project on the island in 2002, according to the agency, in order to preserve the site and protect the safety and health of the more than one million people who visit annually.

Are there any tours now or will there only be when the work is finished?

Construction_and_Engineering

Alcatraz Island rehab project gets $48.6M

> The NPS completed an environmental analysis for a full preservation and safety project on the island in 2002, according to the agency, in order to preserve the site and protect the safety and health of the more than one million people who visit annually.

Are there any tours now or will there only be when the work is finished?