The weather on Alcatraz is unpredictable and subject to change unexpectedly, so be sure to bring along a light jacket or sweater no matter how nice the day starts out. The best advice is always to dress in layers.
Sunglasses and sunblock are recommended, since sunlight reflecting off the bay’s surface can be dangerously bright even on a cold, windy day.
The roads on Alcatraz are steep, so wear comfortable walking shoes with grip-type soles.
What NOT to wear: Sandals, leather-soled shoes, high heels, and open-toe shoes.