SUTHERLIN — A lot about Will Vogel’s annual Polar Bear Plunge has stayed the same over the past 17 years. Every year on New Year’s Day, Vogel and his friends and family gather on his 200 acres east of Sutherlin. They wear outlandish costumes. They inflate their courage with alcohol. They light a bonfire. They jump into his pond. “I always say, if we can do something like this on the first day of the year, then who knows what we can do the rest of the year,” said Vogel, who owns Pinnacle Healthcare of Eugene. On Tuesday at Vogel’s …