Take an invigorating dip in the chilly Atlantic in order to raise funds for a great cause—the Special Olympics of South Carolina. In our state alone, thousands of people with intellectual disabilities benefit from the chance to participate in the Special Olympics. Last year’s event raised more than $43,000, so freeze for a reason and help make this year’s number even bigger. Sands Ocean Club, 9550 Shore Drive. Saturday, 10 a.m. $50 minimum donation to plunge. (843) 915-8086, www.polarplungesc.com