The subject is plural because everyone did a different course. Christine, Lani and Barbara took the route you see above. Mike and Lee, who were slower, did the same thing but took a right turn where the others had, earlier, kept going straight. Linda, on her own, walked the 2 mile loop she and Lee had designed.
Christine introduced herself as "new" and told me that Tracy told her where we are now meeting.
So ... we are learning the roads in the neighborhood, meeting new people, and looking forward to future Sundays.