Complex sentence: The school's Lake Eden campus, used from 1941 to 1957, is now part of Camp Rockmont, a summer camp for boys, and the adjacent Lake Eden Events & Lodging.
Split into simpler sentences: The school's Lake Eden campus, used from 1941 to 1957, was acquired by Camp Rockmont, a summer camp for boys. It is also used as part of the adjacent Lake Eden Events & Lodging.