TOC-0227-ALTPHOTOMore than 250 people braved a water temperature of not much more than 60 degrees to take the Polar Plunge on Saturday morning at Mother’s Beach in Marina del Rey.

While their goose bumps may be gone, their impact remains. The event raised more than $37,000 for the Special Olympics of Southern California — $10,000 more than last year’s event, said Brandon Tanner, the group’s manager of special events. Proceeds of the Polar Plunge support year-round sports activities for athletes with special needs.

Encouraged to wear costumes, participants dressed as everything from penguins to tacos as they sprinted toward the water after an optional breakfast buffet at Killer Shrimp. Seventeen people who donated to the cause but declined to get into the water dressed as chickens.

Well-represented groups included firefighters, sheriff’s deputies and student groups from Loyola Marymount University, UCLA and USC.

— Jennifer Boucher