From left, Brooke Terwilliger, 13, of Parker runs from the cold waters with her cousin, Olivia Montgomery, 14, and sister, Kelsie Terwilliger, 16, during the annual Parker Polar Bear Plunge on Sunday, Jan. 1, 2017. Brooke and Kelsie’s father, Kline Terwilliger, is a founding member of the Parker Polar Bear Club. The club said 187 people participated in the event, which had raised about $3,500 as of Sunday, with more donations scheduled to be tallied Monday.TYE CYPHER/special to the Eagle

Crowds of wintertime swimmers will hop into the Allegheny River at the Parker City Boat Launch for a plunge on Sunday.

Following a two-year hiatus, this New Year’s tradition will begin registration at 9 a.m. and kick off its plunge at 2 p.m. Participants must pay $10 to sign up, with all proceeds serving to benefit local charities. A free T-shirt, while supplies last, is included in the cost.

The event includes a basket raffle and vendors. Area businesses also will provide live music and food specials.

An estimated 300 swimmers joined in the last Parker Plunge, which happened Jan. 2, 2020.