Abstract: There is provided an apparatus for navigating a pedestrian tour including a processor circuit, a memory and a screen. The pedestrian tour includes a starting point, a first pedestrian tour zone and a second pedestrian tour zone, all of which are connected by a series of connecting paths. First and second suggested travel constraints, corresponding respectively with the first and second pedestrian tour zones, are stored in the memory. Responsive to determining that the pedestrian's actual travel within the first pedestrian tour zone will vary from the first suggested travel constraint, the processor circuit dynamically revises the second suggested travel constraint to permit the pedestrian user to execute the pedestrian tour in accordance with a preset target travel constraint for the pedestrian tour.