While a large number of people attending the church come from Bear, there are also many "regulars" and visitors who come from surrounding islands and the mainland. True, there are only a few docks on the church property, but several neighbors and on-island board members happily share dock space on Sunday mornings.
http://stjohnsonthelake.org/
As a Bear Islander, I've spent many hours wandering the island.
And to put it succinctly, I've been heavily involved in the church my whole life.