Before anyone books anything together, ask everyone the same question:
what's one thing that would ruin this trip for you?
Early bedtime disrupted, no flexibility in the schedule, too much walking, whatever it is.
Most group trip friction comes from nobody asking this until it's already a problem.
Poll: Has a group trip ever hit friction that one question could've prevented? — Yes, more than once / Once, learned my lesson / Never happened to me / Never been on a group trip