Seoul Tourism Organization's official walking-tour page separately describes routes intended for older people, disabled travelers and visitors with strollers.
It requires booking at least one week ahead. Participants need an assistant or companion. The standard instruction is at least one assistant per visitor with mobility needs; for users of powered wheelchairs or scooters, one assistant may accompany up to four such participants.
Guide availability, confirmation calls or severe-weather warnings can cancel the reservation. Ask the walking-tour office at 02-6925-0777 about the selected route's accessibility.