Perhaps the biggest offseason event will take place in two weeks. The Polar Bear Plunge is returning for the 18th year on President’s Day weekend, and Coastal Broadcasting will have the official radio stations of the Polar Bear Plunge. 987 The Coast and Fun 106.3 will have six hours of live broadcasts, including 10 to 2 p.m. on Saturday and 9 to 11 a.m. on Sunday, ahead of the walk to fight autism. To sign up for the plunge, click http://www.lacosta-seaisle.com. 987 The Coast was the original radio partner of the first polar plunge in Sea Isle City and the radio station is pleased to return as one of the sponsors for this year’s installment.