One of Delaware’s most celebrated fundraising events — the 34th Lewes Polar Bear Plunge Benefiting Special Olympics Delaware, presented by Wawa — takes center stage at Rehoboth Beach on Sunday, February 2, at 1 pm..   The plunge began in 1992 with 78 participants raising $7,000. Last year, 4,380 Bears raised nearly $1.5 million through in-person and virtual plunges. The …