It's Open to the public? And how do you get there,

It is open to the public yes. By means of a ferry you go to the island.

Buy tickets by web and go to Pier 33 to take a ferry included and audio too.

Thank you all of you guys!!

You can go there two ways. First, Visiting alkatraz website. You can reserve the ticket that includes ferry and audio guide. Another way is buying ticket at perry. but you can't buy ticket if the ticket sold out the day. So I recommend you to buy ticket in advance.

Open to the public, buy tickets online or at the pier.