Open Water Swimming
Alcatraz Sharkfest Swim
About this race
Island to Aquatic Park in 55-degree water — no wetsuit required, but most wear one.
Before you line up
Race-day planning
Alcatraz Sharkfest Swim is held on Saturday, June 5, 2027 in San Francisco, CA. Racing begins at 07:15 AM. Registration is currently open — use the official registration link above to enter directly with the organizer.
Always confirm the date, start time, entry fee and course details on the official event site before you travel or register, as race information can change after a listing is published. For discipline-specific guidance on what to expect and how to prepare, see the Open Water Swimming sector guide.
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