Marin County Triathlon

4330 Redwood Hwy
San Rafael CA 94903

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<p>Marin County Triathlon organizes this annual event at the end of October. The race begins at McNear's Beach Park in San Rafael with a 1.5k swim, then a 22-mile bicycle ride, and finally a 10k run to the finish line. &nbsp;</p> <p>You'll find the organization office in the Vineyard business park located between Terra Linda and Smith Ranch in San Rafael.</p>