Open Water Swims
San Francisco Bay & Beyond

Join thousands of swimmers who have conquered the Bay. Epic crossings, expert coaching, and a global community await you.

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The Open Water Experts

Organising extraordinary swims across San Francisco Bay since 1995.

Water World Swim is the leading open water swimming organisation in San Francisco Bay. We run sanctioned crossings from Alcatraz Island, organise international challenge swims, and connect swimmers of all skill levels with world-class coaching and community. Whether you are a first-time bay swimmer or a seasoned marathon swimmer, there is a place for you here.

Signature Swims

Challenge yourself with one of our iconic open water events.

Alcatraz Crossing

The ultimate San Francisco Bay swim. Cross 2.4 km of cold, current-swept water from Alcatraz Island to the city shoreline.

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Bridge to Bridge Swim

A legendary 10 km course beneath the Bay Bridge and Golden Gate — the ultimate San Francisco open water challenge.

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Swim Around the Rock

Circumnavigate Alcatraz Island in its entirety — a 6 km journey reserved for the dedicated few.

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View All Swims
25+
Years of Operation
18,000+
Swims Completed
40+
Countries Represented
12
International Events

International Events

Take your open water ambitions around the world with our guided international swims.

Bonifacio Channel, Corsica

An epic crossing through the Mediterranean between the islands of Corsica and Sardinia.

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Capri to Naples, Italy

Swim 36 km across the Bay of Naples alongside professional open water athletes.

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Strait of Magellan, Chile

One of the world's most challenging open water crossings through Patagonia's legendary strait.

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