Berkeley native Eli Kane was on his day off from Camp Tawonga on Thursday when he and some other counselors headed to a river in the Stanislaus National Forest. It was a popular swimming hole for Tawonga staffers, off camp property. Somehow — the circumstances have not been determined — he drowned. He was 20 years old. He was the son of Scott and Nancy Kane and the brother of Jesse Kane, all of Berkeley. Both boys became bar mitzvah at Reform Congregation Beth El in Berkeley. Eli was a 2019 graduate of Berkeley High School, where he played on the soccer team, and he was a student at the University of Michigan, according to several media sources. It was his first summer as a counselor at the Jewish overnight camp near Yosemite National Park.