Large bags or luggage is forbidden on both the ferry and the island itself. There are no lockers to leave your luggage either, so avoid taking it with you entirely on the day of the visit. Bicycles, skateboards, roller blades, skates, “wheelie” shoes and weapons are not allowed. Professional photo and video equipment must be authorized beforehand by the National Parks Administration.
Food is allowed, provided it fits in a regular-sized bag, but you can only eat it in the picnic area near the docks. Water is allowed throughout the site.
No, there is no strict dress code for visiting Alcatraz, but keep in mind that the weather can change rapidly, so dress in layers, and wear comfortable shoes, because the hills of the islands can be very steep.
Yes, you need a valid ID for photo identification and a reservation. The ID is only necessary for the person who booked the tickets, not for every member of the party. The ID will be requested when purchasing a ticket (if in person) and when boarding the ship.