It's an AIDS/LifeCycle training group. This one happens to be run by a friend and coworker. It's geared towards newer riders, and so my partner will come along. We usually stop at a coffee shop, often a Starbucks. If things get long enough we do a lunch stop. I try to be near a Subway for that (chopped salad yay!) or I skip that.
Water/bathroom stops are fairly short. Lunch stops are longer. The group tends to get spread out on longer rides.