Complex sentence: At the site, a Christian retreat center with three separate facilities operates on much of the original property, as well as several hundred privately owned homes, the Mount Hermon post office and a bookstore.
Split into simpler sentences: At the site, the Mount Hermon Christian Conference Center, with three separate facilities, operates on much of the original property. There are also several hundred privately owned homes, the Mount Hermon post office, and a bookstore.